/* GLIB - Library of useful routines for C programming * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public * License as published by the Free Software Foundation; either * version 3 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ /* * Modified by the GLib Team and others 1997-2000. See the AUTHORS * file for a list of people on the GLib Team. See the ChangeLog * files for a list of changes. These files are distributed with * GLib at ftp://ftp.gtk.org/pub/gtk/. */ /* * Modified by Bruno Haible for use as a gnulib module. */ /* * MT safe */ #include "config.h" #if 0 #define _GNU_SOURCE /* For stpcpy */ #endif #include #include #include #include #include #include #include /* For tolower() */ #if !defined (HAVE_STRSIGNAL) || !defined(NO_SYS_SIGLIST_DECL) #include #endif #include "glib.h" #if 0 #include "gprintf.h" #include "gprintfint.h" #include "galias.h" #ifdef G_OS_WIN32 #include #endif #endif /* do not include in this place since it * interferes with g_strsignal() on some OSes */ static const guint16 ascii_table_data[256] = { 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x104, 0x104, 0x004, 0x104, 0x104, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x004, 0x140, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x459, 0x459, 0x459, 0x459, 0x459, 0x459, 0x459, 0x459, 0x459, 0x459, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x653, 0x653, 0x653, 0x653, 0x653, 0x653, 0x253, 0x253, 0x253, 0x253, 0x253, 0x253, 0x253, 0x253, 0x253, 0x253, 0x253, 0x253, 0x253, 0x253, 0x253, 0x253, 0x253, 0x253, 0x253, 0x253, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x473, 0x473, 0x473, 0x473, 0x473, 0x473, 0x073, 0x073, 0x073, 0x073, 0x073, 0x073, 0x073, 0x073, 0x073, 0x073, 0x073, 0x073, 0x073, 0x073, 0x073, 0x073, 0x073, 0x073, 0x073, 0x073, 0x0d0, 0x0d0, 0x0d0, 0x0d0, 0x004 /* the upper 128 are all zeroes */ }; const guint16 * const g_ascii_table = ascii_table_data; gchar* g_strdup (const gchar *str) { gchar *new_str; gsize length; if (str) { length = strlen (str) + 1; new_str = g_new (char, length); memcpy (new_str, str, length); } else new_str = NULL; return new_str; } #if 0 gpointer g_memdup (gconstpointer mem, guint byte_size) { gpointer new_mem; if (mem) { new_mem = g_malloc (byte_size); memcpy (new_mem, mem, byte_size); } else new_mem = NULL; return new_mem; } #endif gchar* g_strndup (const gchar *str, gsize n) { gchar *new_str; if (str) { new_str = g_new (gchar, n + 1); strncpy (new_str, str, n); new_str[n] = '\0'; } else new_str = NULL; return new_str; } #if 0 gchar* g_strnfill (gsize length, gchar fill_char) { gchar *str; str = g_new (gchar, length + 1); memset (str, (guchar)fill_char, length); str[length] = '\0'; return str; } #endif /** * g_stpcpy: * @dest: destination buffer. * @src: source string. * * Copies a nul-terminated string into the dest buffer, include the * trailing nul, and return a pointer to the trailing nul byte. * This is useful for concatenating multiple strings together * without having to repeatedly scan for the end. * * Return value: a pointer to trailing nul byte. **/ gchar * g_stpcpy (gchar *dest, const gchar *src) { #ifdef HAVE_STPCPY g_return_val_if_fail (dest != NULL, NULL); g_return_val_if_fail (src != NULL, NULL); return stpcpy (dest, src); #else register gchar *d = dest; register const gchar *s = src; g_return_val_if_fail (dest != NULL, NULL); g_return_val_if_fail (src != NULL, NULL); do *d++ = *s; while (*s++ != '\0'); return d - 1; #endif } gchar* g_strdup_vprintf (const gchar *format, va_list args) { gchar *string = NULL; g_vasprintf (&string, format, args); return string; } gchar* g_strdup_printf (const gchar *format, ...) { gchar *buffer; va_list args; va_start (args, format); buffer = g_strdup_vprintf (format, args); va_end (args); return buffer; } gchar* g_strconcat (const gchar *string1, ...) { gsize l; va_list args; gchar *s; gchar *concat; gchar *ptr; if (!string1) return NULL; l = 1 + strlen (string1); va_start (args, string1); s = va_arg (args, gchar*); while (s) { l += strlen (s); s = va_arg (args, gchar*); } va_end (args); concat = g_new (gchar, l); ptr = concat; ptr = g_stpcpy (ptr, string1); va_start (args, string1); s = va_arg (args, gchar*); while (s) { ptr = g_stpcpy (ptr, s); s = va_arg (args, gchar*); } va_end (args); return concat; } #if 0 /** * g_strtod: * @nptr: the string to convert to a numeric value. * @endptr: if non-%NULL, it returns the character after * the last character used in the conversion. * * Converts a string to a #gdouble value. * It calls the standard strtod() function to handle the conversion, but * if the string is not completely converted it attempts the conversion * again with g_ascii_strtod(), and returns the best match. * * This function should seldomly be used. The normal situation when reading * numbers not for human consumption is to use g_ascii_strtod(). Only when * you know that you must expect both locale formatted and C formatted numbers * should you use this. Make sure that you don't pass strings such as comma * separated lists of values, since the commas may be interpreted as a decimal * point in some locales, causing unexpected results. * * Return value: the #gdouble value. **/ gdouble g_strtod (const gchar *nptr, gchar **endptr) { gchar *fail_pos_1; gchar *fail_pos_2; gdouble val_1; gdouble val_2 = 0; g_return_val_if_fail (nptr != NULL, 0); fail_pos_1 = NULL; fail_pos_2 = NULL; val_1 = strtod (nptr, &fail_pos_1); if (fail_pos_1 && fail_pos_1[0] != 0) val_2 = g_ascii_strtod (nptr, &fail_pos_2); if (!fail_pos_1 || fail_pos_1[0] == 0 || fail_pos_1 >= fail_pos_2) { if (endptr) *endptr = fail_pos_1; return val_1; } else { if (endptr) *endptr = fail_pos_2; return val_2; } } /** * g_ascii_strtod: * @nptr: the string to convert to a numeric value. * @endptr: if non-%NULL, it returns the character after * the last character used in the conversion. * * Converts a string to a #gdouble value. * This function behaves like the standard strtod() function * does in the C locale. It does this without actually * changing the current locale, since that would not be * thread-safe. * * This function is typically used when reading configuration * files or other non-user input that should be locale independent. * To handle input from the user you should normally use the * locale-sensitive system strtod() function. * * To convert from a #gdouble to a string in a locale-insensitive * way, use g_ascii_dtostr(). * * If the correct value would cause overflow, plus or minus %HUGE_VAL * is returned (according to the sign of the value), and %ERANGE is * stored in %errno. If the correct value would cause underflow, * zero is returned and %ERANGE is stored in %errno. * * This function resets %errno before calling strtod() so that * you can reliably detect overflow and underflow. * * Return value: the #gdouble value. **/ gdouble g_ascii_strtod (const gchar *nptr, gchar **endptr) { gchar *fail_pos; gdouble val; struct lconv *locale_data; const char *decimal_point; int decimal_point_len; const char *p, *decimal_point_pos; const char *end = NULL; /* Silence gcc */ int strtod_errno; g_return_val_if_fail (nptr != NULL, 0); fail_pos = NULL; locale_data = localeconv (); decimal_point = locale_data->decimal_point; decimal_point_len = strlen (decimal_point); g_assert (decimal_point_len != 0); decimal_point_pos = NULL; end = NULL; if (decimal_point[0] != '.' || decimal_point[1] != 0) { p = nptr; /* Skip leading space */ while (g_ascii_isspace (*p)) p++; /* Skip leading optional sign */ if (*p == '+' || *p == '-') p++; if (p[0] == '0' && (p[1] == 'x' || p[1] == 'X')) { p += 2; /* HEX - find the (optional) decimal point */ while (g_ascii_isxdigit (*p)) p++; if (*p == '.') decimal_point_pos = p++; while (g_ascii_isxdigit (*p)) p++; if (*p == 'p' || *p == 'P') p++; if (*p == '+' || *p == '-') p++; while (g_ascii_isdigit (*p)) p++; end = p; } else if (g_ascii_isdigit (*p) || *p == '.') { while (g_ascii_isdigit (*p)) p++; if (*p == '.') decimal_point_pos = p++; while (g_ascii_isdigit (*p)) p++; if (*p == 'e' || *p == 'E') p++; if (*p == '+' || *p == '-') p++; while (g_ascii_isdigit (*p)) p++; end = p; } /* For the other cases, we need not convert the decimal point */ } if (decimal_point_pos) { char *copy, *c; /* We need to convert the '.' to the locale specific decimal point */ copy = g_malloc (end - nptr + 1 + decimal_point_len); c = copy; memcpy (c, nptr, decimal_point_pos - nptr); c += decimal_point_pos - nptr; memcpy (c, decimal_point, decimal_point_len); c += decimal_point_len; memcpy (c, decimal_point_pos + 1, end - (decimal_point_pos + 1)); c += end - (decimal_point_pos + 1); *c = 0; errno = 0; val = strtod (copy, &fail_pos); strtod_errno = errno; if (fail_pos) { if (fail_pos - copy > decimal_point_pos - nptr) fail_pos = (char *)nptr + (fail_pos - copy) - (decimal_point_len - 1); else fail_pos = (char *)nptr + (fail_pos - copy); } g_free (copy); } else if (end) { char *copy; copy = g_malloc (end - (char *)nptr + 1); memcpy (copy, nptr, end - nptr); *(copy + (end - (char *)nptr)) = 0; errno = 0; val = strtod (copy, &fail_pos); strtod_errno = errno; if (fail_pos) { fail_pos = (char *)nptr + (fail_pos - copy); } g_free (copy); } else { errno = 0; val = strtod (nptr, &fail_pos); strtod_errno = errno; } if (endptr) *endptr = fail_pos; errno = strtod_errno; return val; } /** * g_ascii_dtostr: * @buffer: A buffer to place the resulting string in * @buf_len: The length of the buffer. * @d: The #gdouble to convert * * Converts a #gdouble to a string, using the '.' as * decimal point. * * This functions generates enough precision that converting * the string back using g_ascii_strtod() gives the same machine-number * (on machines with IEEE compatible 64bit doubles). It is * guaranteed that the size of the resulting string will never * be larger than @G_ASCII_DTOSTR_BUF_SIZE bytes. * * Return value: The pointer to the buffer with the converted string. **/ gchar * g_ascii_dtostr (gchar *buffer, gint buf_len, gdouble d) { return g_ascii_formatd (buffer, buf_len, "%.17g", d); } /** * g_ascii_formatd: * @buffer: A buffer to place the resulting string in * @buf_len: The length of the buffer. * @format: The printf()-style format to use for the * code to use for converting. * @d: The #gdouble to convert * * Converts a #gdouble to a string, using the '.' as * decimal point. To format the number you pass in * a printf()-style format string. Allowed conversion * specifiers are 'e', 'E', 'f', 'F', 'g' and 'G'. * * If you just want to want to serialize the value into a * string, use g_ascii_dtostr(). * * Return value: The pointer to the buffer with the converted string. **/ gchar * g_ascii_formatd (gchar *buffer, gint buf_len, const gchar *format, gdouble d) { struct lconv *locale_data; const char *decimal_point; int decimal_point_len; gchar *p; int rest_len; gchar format_char; g_return_val_if_fail (buffer != NULL, NULL); g_return_val_if_fail (format[0] == '%', NULL); g_return_val_if_fail (strpbrk (format + 1, "'l%") == NULL, NULL); format_char = format[strlen (format) - 1]; g_return_val_if_fail (format_char == 'e' || format_char == 'E' || format_char == 'f' || format_char == 'F' || format_char == 'g' || format_char == 'G', NULL); if (format[0] != '%') return NULL; if (strpbrk (format + 1, "'l%")) return NULL; if (!(format_char == 'e' || format_char == 'E' || format_char == 'f' || format_char == 'F' || format_char == 'g' || format_char == 'G')) return NULL; _g_snprintf (buffer, buf_len, format, d); locale_data = localeconv (); decimal_point = locale_data->decimal_point; decimal_point_len = strlen (decimal_point); g_assert (decimal_point_len != 0); if (decimal_point[0] != '.' || decimal_point[1] != 0) { p = buffer; while (g_ascii_isspace (*p)) p++; if (*p == '+' || *p == '-') p++; while (isdigit ((guchar)*p)) p++; if (strncmp (p, decimal_point, decimal_point_len) == 0) { *p = '.'; p++; if (decimal_point_len > 1) { rest_len = strlen (p + (decimal_point_len-1)); memmove (p, p + (decimal_point_len-1), rest_len); p[rest_len] = 0; } } } return buffer; } static guint64 g_parse_long_long (const gchar *nptr, gchar **endptr, guint base, gboolean *negative) { /* this code is based on on the strtol(3) code from GNU libc released under * the GNU General Public License. * * Copyright (C) 1991-1992, 1994-2002 Free Software Foundation, Inc. */ #define ISSPACE(c) ((c) == ' ' || (c) == '\f' || (c) == '\n' || \ (c) == '\r' || (c) == '\t' || (c) == '\v') #define ISUPPER(c) ((c) >= 'A' && (c) <= 'Z') #define ISLOWER(c) ((c) >= 'a' && (c) <= 'z') #define ISALPHA(c) (ISUPPER (c) || ISLOWER (c)) #define TOUPPER(c) (ISLOWER (c) ? (c) - 'a' + 'A' : (c)) #define TOLOWER(c) (ISUPPER (c) ? (c) - 'A' + 'a' : (c)) gboolean overflow; guint64 cutoff; guint64 cutlim; guint64 ui64; const gchar *s, *save; guchar c; g_return_val_if_fail (nptr != NULL, 0); if (base == 1 || base > 36) { errno = EINVAL; return 0; } save = s = nptr; /* Skip white space. */ while (ISSPACE (*s)) ++s; if (G_UNLIKELY (!*s)) goto noconv; /* Check for a sign. */ *negative = FALSE; if (*s == '-') { *negative = TRUE; ++s; } else if (*s == '+') ++s; /* Recognize number prefix and if BASE is zero, figure it out ourselves. */ if (*s == '0') { if ((base == 0 || base == 16) && TOUPPER (s[1]) == 'X') { s += 2; base = 16; } else if (base == 0) base = 8; } else if (base == 0) base = 10; /* Save the pointer so we can check later if anything happened. */ save = s; cutoff = G_MAXUINT64 / base; cutlim = G_MAXUINT64 % base; overflow = FALSE; ui64 = 0; c = *s; for (; c; c = *++s) { if (c >= '0' && c <= '9') c -= '0'; else if (ISALPHA (c)) c = TOUPPER (c) - 'A' + 10; else break; if (c >= base) break; /* Check for overflow. */ if (ui64 > cutoff || (ui64 == cutoff && c > cutlim)) overflow = TRUE; else { ui64 *= base; ui64 += c; } } /* Check if anything actually happened. */ if (s == save) goto noconv; /* Store in ENDPTR the address of one character past the last character we converted. */ if (endptr) *endptr = (gchar*) s; if (G_UNLIKELY (overflow)) { errno = ERANGE; return G_MAXUINT64; } return ui64; noconv: /* We must handle a special case here: the base is 0 or 16 and the first two characters are '0' and 'x', but the rest are no hexadecimal digits. This is no error case. We return 0 and ENDPTR points to the `x`. */ if (endptr) { if (save - nptr >= 2 && TOUPPER (save[-1]) == 'X' && save[-2] == '0') *endptr = (gchar*) &save[-1]; else /* There was no number to convert. */ *endptr = (gchar*) nptr; } return 0; } /** * g_ascii_strtoull: * @nptr: the string to convert to a numeric value. * @endptr: if non-%NULL, it returns the character after * the last character used in the conversion. * @base: to be used for the conversion, 2..36 or 0 * * Converts a string to a #guint64 value. * This function behaves like the standard strtoull() function * does in the C locale. It does this without actually * changing the current locale, since that would not be * thread-safe. * * This function is typically used when reading configuration * files or other non-user input that should be locale independent. * To handle input from the user you should normally use the * locale-sensitive system strtoull() function. * * If the correct value would cause overflow, %G_MAXUINT64 * is returned, and %ERANGE is stored in %errno. If the base is * outside the valid range, zero is returned, and %EINVAL is stored * in %errno. If the string conversion fails, zero is returned, and * @endptr returns @nptr (if @endptr is non-%NULL). * * Return value: the #guint64 value or zero on error. * * Since: 2.2 **/ guint64 g_ascii_strtoull (const gchar *nptr, gchar **endptr, guint base) { gboolean negative; guint64 result; result = g_parse_long_long (nptr, endptr, base, &negative); /* Return the result of the appropriate sign. */ return negative ? -result : result; } /** * g_ascii_strtoll: * @nptr: the string to convert to a numeric value. * @endptr: if non-%NULL, it returns the character after * the last character used in the conversion. * @base: to be used for the conversion, 2..36 or 0 * * Converts a string to a #gint64 value. * This function behaves like the standard strtoll() function * does in the C locale. It does this without actually * changing the current locale, since that would not be * thread-safe. * * This function is typically used when reading configuration * files or other non-user input that should be locale independent. * To handle input from the user you should normally use the * locale-sensitive system strtoll() function. * * If the correct value would cause overflow, %G_MAXINT64 or %G_MININT64 * is returned, and %ERANGE is stored in %errno. If the base is * outside the valid range, zero is returned, and %EINVAL is stored * in %errno. If the string conversion fails, zero is returned, and * @endptr returns @nptr (if @endptr is non-%NULL). * * Return value: the #gint64 value or zero on error. * * Since: 2.12 **/ gint64 g_ascii_strtoll (const gchar *nptr, gchar **endptr, guint base) { gboolean negative; guint64 result; result = g_parse_long_long (nptr, endptr, base, &negative); if (negative && result > (guint64) G_MININT64) { errno = ERANGE; return G_MININT64; } else if (!negative && result > (guint64) G_MAXINT64) { errno = ERANGE; return G_MAXINT64; } else return (gint64) result; } G_CONST_RETURN gchar* g_strerror (gint errnum) { static GStaticPrivate msg_private = G_STATIC_PRIVATE_INIT; char *msg; int saved_errno = errno; #ifdef HAVE_STRERROR const char *msg_locale; msg_locale = strerror (errnum); if (g_get_charset (NULL)) { errno = saved_errno; return msg_locale; } else { gchar *msg_utf8 = g_locale_to_utf8 (msg_locale, -1, NULL, NULL, NULL); if (msg_utf8) { /* Stick in the quark table so that we can return a static result */ GQuark msg_quark = g_quark_from_string (msg_utf8); g_free (msg_utf8); msg_utf8 = (gchar *) g_quark_to_string (msg_quark); errno = saved_errno; return msg_utf8; } } #elif NO_SYS_ERRLIST switch (errnum) { #ifdef E2BIG case E2BIG: return "argument list too long"; #endif #ifdef EACCES case EACCES: return "permission denied"; #endif #ifdef EADDRINUSE case EADDRINUSE: return "address already in use"; #endif #ifdef EADDRNOTAVAIL case EADDRNOTAVAIL: return "can't assign requested address"; #endif #ifdef EADV case EADV: return "advertise error"; #endif #ifdef EAFNOSUPPORT case EAFNOSUPPORT: return "address family not supported by protocol family"; #endif #ifdef EAGAIN case EAGAIN: return "try again"; #endif #ifdef EALIGN case EALIGN: return "EALIGN"; #endif #ifdef EALREADY case EALREADY: return "operation already in progress"; #endif #ifdef EBADE case EBADE: return "bad exchange descriptor"; #endif #ifdef EBADF case EBADF: return "bad file number"; #endif #ifdef EBADFD case EBADFD: return "file descriptor in bad state"; #endif #ifdef EBADMSG case EBADMSG: return "not a data message"; #endif #ifdef EBADR case EBADR: return "bad request descriptor"; #endif #ifdef EBADRPC case EBADRPC: return "RPC structure is bad"; #endif #ifdef EBADRQC case EBADRQC: return "bad request code"; #endif #ifdef EBADSLT case EBADSLT: return "invalid slot"; #endif #ifdef EBFONT case EBFONT: return "bad font file format"; #endif #ifdef EBUSY case EBUSY: return "mount device busy"; #endif #ifdef ECHILD case ECHILD: return "no children"; #endif #ifdef ECHRNG case ECHRNG: return "channel number out of range"; #endif #ifdef ECOMM case ECOMM: return "communication error on send"; #endif #ifdef ECONNABORTED case ECONNABORTED: return "software caused connection abort"; #endif #ifdef ECONNREFUSED case ECONNREFUSED: return "connection refused"; #endif #ifdef ECONNRESET case ECONNRESET: return "connection reset by peer"; #endif #if defined(EDEADLK) && (!defined(EWOULDBLOCK) || (EDEADLK != EWOULDBLOCK)) case EDEADLK: return "resource deadlock avoided"; #endif #ifdef EDEADLOCK case EDEADLOCK: return "resource deadlock avoided"; #endif #ifdef EDESTADDRREQ case EDESTADDRREQ: return "destination address required"; #endif #ifdef EDIRTY case EDIRTY: return "mounting a dirty fs w/o force"; #endif #ifdef EDOM case EDOM: return "math argument out of range"; #endif #ifdef EDOTDOT case EDOTDOT: return "cross mount point"; #endif #ifdef EDQUOT case EDQUOT: return "disk quota exceeded"; #endif #ifdef EDUPPKG case EDUPPKG: return "duplicate package name"; #endif #ifdef EEXIST case EEXIST: return "file already exists"; #endif #ifdef EFAULT case EFAULT: return "bad address in system call argument"; #endif #ifdef EFBIG case EFBIG: return "file too large"; #endif #ifdef EHOSTDOWN case EHOSTDOWN: return "host is down"; #endif #ifdef EHOSTUNREACH case EHOSTUNREACH: return "host is unreachable"; #endif #ifdef EIDRM case EIDRM: return "identifier removed"; #endif #ifdef EINIT case EINIT: return "initialization error"; #endif #ifdef EINPROGRESS case EINPROGRESS: return "operation now in progress"; #endif #ifdef EINTR case EINTR: return "interrupted system call"; #endif #ifdef EINVAL case EINVAL: return "invalid argument"; #endif #ifdef EIO case EIO: return "I/O error"; #endif #ifdef EISCONN case EISCONN: return "socket is already connected"; #endif #ifdef EISDIR case EISDIR: return "is a directory"; #endif #ifdef EISNAME case EISNAM: return "is a name file"; #endif #ifdef ELBIN case ELBIN: return "ELBIN"; #endif #ifdef EL2HLT case EL2HLT: return "level 2 halted"; #endif #ifdef EL2NSYNC case EL2NSYNC: return "level 2 not synchronized"; #endif #ifdef EL3HLT case EL3HLT: return "level 3 halted"; #endif #ifdef EL3RST case EL3RST: return "level 3 reset"; #endif #ifdef ELIBACC case ELIBACC: return "can not access a needed shared library"; #endif #ifdef ELIBBAD case ELIBBAD: return "accessing a corrupted shared library"; #endif #ifdef ELIBEXEC case ELIBEXEC: return "can not exec a shared library directly"; #endif #ifdef ELIBMAX case ELIBMAX: return "attempting to link in more shared libraries than system limit"; #endif #ifdef ELIBSCN case ELIBSCN: return ".lib section in a.out corrupted"; #endif #ifdef ELNRNG case ELNRNG: return "link number out of range"; #endif #ifdef ELOOP case ELOOP: return "too many levels of symbolic links"; #endif #ifdef EMFILE case EMFILE: return "too many open files"; #endif #ifdef EMLINK case EMLINK: return "too many links"; #endif #ifdef EMSGSIZE case EMSGSIZE: return "message too long"; #endif #ifdef EMULTIHOP case EMULTIHOP: return "multihop attempted"; #endif #ifdef ENAMETOOLONG case ENAMETOOLONG: return "file name too long"; #endif #ifdef ENAVAIL case ENAVAIL: return "not available"; #endif #ifdef ENET case ENET: return "ENET"; #endif #ifdef ENETDOWN case ENETDOWN: return "network is down"; #endif #ifdef ENETRESET case ENETRESET: return "network dropped connection on reset"; #endif #ifdef ENETUNREACH case ENETUNREACH: return "network is unreachable"; #endif #ifdef ENFILE case ENFILE: return "file table overflow"; #endif #ifdef ENOANO case ENOANO: return "anode table overflow"; #endif #if defined(ENOBUFS) && (!defined(ENOSR) || (ENOBUFS != ENOSR)) case ENOBUFS: return "no buffer space available"; #endif #ifdef ENOCSI case ENOCSI: return "no CSI structure available"; #endif #ifdef ENODATA case ENODATA: return "no data available"; #endif #ifdef ENODEV case ENODEV: return "no such device"; #endif #ifdef ENOENT case ENOENT: return "no such file or directory"; #endif #ifdef ENOEXEC case ENOEXEC: return "exec format error"; #endif #ifdef ENOLCK case ENOLCK: return "no locks available"; #endif #ifdef ENOLINK case ENOLINK: return "link has be severed"; #endif #ifdef ENOMEM case ENOMEM: return "not enough memory"; #endif #ifdef ENOMSG case ENOMSG: return "no message of desired type"; #endif #ifdef ENONET case ENONET: return "machine is not on the network"; #endif #ifdef ENOPKG case ENOPKG: return "package not installed"; #endif #ifdef ENOPROTOOPT case ENOPROTOOPT: return "bad proocol option"; #endif #ifdef ENOSPC case ENOSPC: return "no space left on device"; #endif #ifdef ENOSR case ENOSR: return "out of stream resources"; #endif #ifdef ENOSTR case ENOSTR: return "not a stream device"; #endif #ifdef ENOSYM case ENOSYM: return "unresolved symbol name"; #endif #ifdef ENOSYS case ENOSYS: return "function not implemented"; #endif #ifdef ENOTBLK case ENOTBLK: return "block device required"; #endif #ifdef ENOTCONN case ENOTCONN: return "socket is not connected"; #endif #ifdef ENOTDIR case ENOTDIR: return "not a directory"; #endif #ifdef ENOTEMPTY case ENOTEMPTY: return "directory not empty"; #endif #ifdef ENOTNAM case ENOTNAM: return "not a name file"; #endif #ifdef ENOTSOCK case ENOTSOCK: return "socket operation on non-socket"; #endif #ifdef ENOTTY case ENOTTY: return "inappropriate device for ioctl"; #endif #ifdef ENOTUNIQ case ENOTUNIQ: return "name not unique on network"; #endif #ifdef ENXIO case ENXIO: return "no such device or address"; #endif #ifdef EOPNOTSUPP case EOPNOTSUPP: return "operation not supported on socket"; #endif #ifdef EPERM case EPERM: return "not owner"; #endif #ifdef EPFNOSUPPORT case EPFNOSUPPORT: return "protocol family not supported"; #endif #ifdef EPIPE case EPIPE: return "broken pipe"; #endif #ifdef EPROCLIM case EPROCLIM: return "too many processes"; #endif #ifdef EPROCUNAVAIL case EPROCUNAVAIL: return "bad procedure for program"; #endif #ifdef EPROGMISMATCH case EPROGMISMATCH: return "program version wrong"; #endif #ifdef EPROGUNAVAIL case EPROGUNAVAIL: return "RPC program not available"; #endif #ifdef EPROTO case EPROTO: return "protocol error"; #endif #ifdef EPROTONOSUPPORT case EPROTONOSUPPORT: return "protocol not suppored"; #endif #ifdef EPROTOTYPE case EPROTOTYPE: return "protocol wrong type for socket"; #endif #ifdef ERANGE case ERANGE: return "math result unrepresentable"; #endif #if defined(EREFUSED) && (!defined(ECONNREFUSED) || (EREFUSED != ECONNREFUSED)) case EREFUSED: return "EREFUSED"; #endif #ifdef EREMCHG case EREMCHG: return "remote address changed"; #endif #ifdef EREMDEV case EREMDEV: return "remote device"; #endif #ifdef EREMOTE case EREMOTE: return "pathname hit remote file system"; #endif #ifdef EREMOTEIO case EREMOTEIO: return "remote i/o error"; #endif #ifdef EREMOTERELEASE case EREMOTERELEASE: return "EREMOTERELEASE"; #endif #ifdef EROFS case EROFS: return "read-only file system"; #endif #ifdef ERPCMISMATCH case ERPCMISMATCH: return "RPC version is wrong"; #endif #ifdef ERREMOTE case ERREMOTE: return "object is remote"; #endif #ifdef ESHUTDOWN case ESHUTDOWN: return "can't send afer socket shutdown"; #endif #ifdef ESOCKTNOSUPPORT case ESOCKTNOSUPPORT: return "socket type not supported"; #endif #ifdef ESPIPE case ESPIPE: return "invalid seek"; #endif #ifdef ESRCH case ESRCH: return "no such process"; #endif #ifdef ESRMNT case ESRMNT: return "srmount error"; #endif #ifdef ESTALE case ESTALE: return "stale remote file handle"; #endif #ifdef ESUCCESS case ESUCCESS: return "Error 0"; #endif #ifdef ETIME case ETIME: return "timer expired"; #endif #ifdef ETIMEDOUT case ETIMEDOUT: return "connection timed out"; #endif #ifdef ETOOMANYREFS case ETOOMANYREFS: return "too many references: can't splice"; #endif #ifdef ETXTBSY case ETXTBSY: return "text file or pseudo-device busy"; #endif #ifdef EUCLEAN case EUCLEAN: return "structure needs cleaning"; #endif #ifdef EUNATCH case EUNATCH: return "protocol driver not attached"; #endif #ifdef EUSERS case EUSERS: return "too many users"; #endif #ifdef EVERSION case EVERSION: return "version mismatch"; #endif #if defined(EWOULDBLOCK) && (!defined(EAGAIN) || (EWOULDBLOCK != EAGAIN)) case EWOULDBLOCK: return "operation would block"; #endif #ifdef EXDEV case EXDEV: return "cross-domain link"; #endif #ifdef EXFULL case EXFULL: return "message tables full"; #endif } #else /* NO_SYS_ERRLIST */ extern int sys_nerr; extern char *sys_errlist[]; if ((errnum > 0) && (errnum <= sys_nerr)) return sys_errlist [errnum]; #endif /* NO_SYS_ERRLIST */ msg = g_static_private_get (&msg_private); if (!msg) { msg = g_new (gchar, 64); g_static_private_set (&msg_private, msg, g_free); } _g_sprintf (msg, "unknown error (%d)", errnum); errno = saved_errno; return msg; } G_CONST_RETURN gchar* g_strsignal (gint signum) { static GStaticPrivate msg_private = G_STATIC_PRIVATE_INIT; char *msg; #ifdef HAVE_STRSIGNAL const char *msg_locale; #if defined(G_OS_BEOS) || defined(G_WITH_CYGWIN) extern const char *strsignal(int); #else /* this is declared differently (const) in string.h on BeOS */ extern char *strsignal (int sig); #endif /* !G_OS_BEOS && !G_WITH_CYGWIN */ msg_locale = strsignal (signum); if (g_get_charset (NULL)) return msg_locale; else { gchar *msg_utf8 = g_locale_to_utf8 (msg_locale, -1, NULL, NULL, NULL); if (msg_utf8) { /* Stick in the quark table so that we can return a static result */ GQuark msg_quark = g_quark_from_string (msg_utf8); g_free (msg_utf8); return g_quark_to_string (msg_quark); } } #elif NO_SYS_SIGLIST switch (signum) { #ifdef SIGHUP case SIGHUP: return "Hangup"; #endif #ifdef SIGINT case SIGINT: return "Interrupt"; #endif #ifdef SIGQUIT case SIGQUIT: return "Quit"; #endif #ifdef SIGILL case SIGILL: return "Illegal instruction"; #endif #ifdef SIGTRAP case SIGTRAP: return "Trace/breakpoint trap"; #endif #ifdef SIGABRT case SIGABRT: return "IOT trap/Abort"; #endif #ifdef SIGBUS case SIGBUS: return "Bus error"; #endif #ifdef SIGFPE case SIGFPE: return "Floating point exception"; #endif #ifdef SIGKILL case SIGKILL: return "Killed"; #endif #ifdef SIGUSR1 case SIGUSR1: return "User defined signal 1"; #endif #ifdef SIGSEGV case SIGSEGV: return "Segmentation fault"; #endif #ifdef SIGUSR2 case SIGUSR2: return "User defined signal 2"; #endif #ifdef SIGPIPE case SIGPIPE: return "Broken pipe"; #endif #ifdef SIGALRM case SIGALRM: return "Alarm clock"; #endif #ifdef SIGTERM case SIGTERM: return "Terminated"; #endif #ifdef SIGSTKFLT case SIGSTKFLT: return "Stack fault"; #endif #ifdef SIGCHLD case SIGCHLD: return "Child exited"; #endif #ifdef SIGCONT case SIGCONT: return "Continued"; #endif #ifdef SIGSTOP case SIGSTOP: return "Stopped (signal)"; #endif #ifdef SIGTSTP case SIGTSTP: return "Stopped"; #endif #ifdef SIGTTIN case SIGTTIN: return "Stopped (tty input)"; #endif #ifdef SIGTTOU case SIGTTOU: return "Stopped (tty output)"; #endif #ifdef SIGURG case SIGURG: return "Urgent condition"; #endif #ifdef SIGXCPU case SIGXCPU: return "CPU time limit exceeded"; #endif #ifdef SIGXFSZ case SIGXFSZ: return "File size limit exceeded"; #endif #ifdef SIGVTALRM case SIGVTALRM: return "Virtual time alarm"; #endif #ifdef SIGPROF case SIGPROF: return "Profile signal"; #endif #ifdef SIGWINCH case SIGWINCH: return "Window size changed"; #endif #ifdef SIGIO case SIGIO: return "Possible I/O"; #endif #ifdef SIGPWR case SIGPWR: return "Power failure"; #endif #ifdef SIGUNUSED case SIGUNUSED: return "Unused signal"; #endif } #else /* NO_SYS_SIGLIST */ #ifdef NO_SYS_SIGLIST_DECL extern char *sys_siglist[]; /*(see Tue Jan 19 00:44:24 1999 in changelog)*/ #endif return (char*) /* this function should return const --josh */ sys_siglist [signum]; #endif /* NO_SYS_SIGLIST */ msg = g_static_private_get (&msg_private); if (!msg) { msg = g_new (gchar, 64); g_static_private_set (&msg_private, msg, g_free); } _g_sprintf (msg, "unknown signal (%d)", signum); return msg; } /* Functions g_strlcpy and g_strlcat were originally developed by * Todd C. Miller to simplify writing secure code. * See ftp://ftp.openbsd.org/pub/OpenBSD/src/lib/libc/string/strlcpy.3 * for more information. */ #ifdef HAVE_STRLCPY /* Use the native ones, if available; they might be implemented in assembly */ gsize g_strlcpy (gchar *dest, const gchar *src, gsize dest_size) { g_return_val_if_fail (dest != NULL, 0); g_return_val_if_fail (src != NULL, 0); return strlcpy (dest, src, dest_size); } gsize g_strlcat (gchar *dest, const gchar *src, gsize dest_size) { g_return_val_if_fail (dest != NULL, 0); g_return_val_if_fail (src != NULL, 0); return strlcat (dest, src, dest_size); } #else /* ! HAVE_STRLCPY */ /* g_strlcpy * * Copy string src to buffer dest (of buffer size dest_size). At most * dest_size-1 characters will be copied. Always NUL terminates * (unless dest_size == 0). This function does NOT allocate memory. * Unlike strncpy, this function doesn't pad dest (so it's often faster). * Returns size of attempted result, strlen(src), * so if retval >= dest_size, truncation occurred. */ gsize g_strlcpy (gchar *dest, const gchar *src, gsize dest_size) { register gchar *d = dest; register const gchar *s = src; register gsize n = dest_size; g_return_val_if_fail (dest != NULL, 0); g_return_val_if_fail (src != NULL, 0); /* Copy as many bytes as will fit */ if (n != 0 && --n != 0) do { register gchar c = *s++; *d++ = c; if (c == 0) break; } while (--n != 0); /* If not enough room in dest, add NUL and traverse rest of src */ if (n == 0) { if (dest_size != 0) *d = 0; while (*s++) ; } return s - src - 1; /* count does not include NUL */ } /* g_strlcat * * Appends string src to buffer dest (of buffer size dest_size). * At most dest_size-1 characters will be copied. * Unlike strncat, dest_size is the full size of dest, not the space left over. * This function does NOT allocate memory. * This always NUL terminates (unless siz == 0 or there were no NUL characters * in the dest_size characters of dest to start with). * Returns size of attempted result, which is * MIN (dest_size, strlen (original dest)) + strlen (src), * so if retval >= dest_size, truncation occurred. */ gsize g_strlcat (gchar *dest, const gchar *src, gsize dest_size) { register gchar *d = dest; register const gchar *s = src; register gsize bytes_left = dest_size; gsize dlength; /* Logically, MIN (strlen (d), dest_size) */ g_return_val_if_fail (dest != NULL, 0); g_return_val_if_fail (src != NULL, 0); /* Find the end of dst and adjust bytes left but don't go past end */ while (*d != 0 && bytes_left-- != 0) d++; dlength = d - dest; bytes_left = dest_size - dlength; if (bytes_left == 0) return dlength + strlen (s); while (*s != 0) { if (bytes_left != 1) { *d++ = *s; bytes_left--; } s++; } *d = 0; return dlength + (s - src); /* count does not include NUL */ } #endif /* ! HAVE_STRLCPY */ /** * g_ascii_strdown: * @str: a string. * @len: length of @str in bytes, or -1 if @str is nul-terminated. * * Converts all upper case ASCII letters to lower case ASCII letters. * * Return value: a newly-allocated string, with all the upper case * characters in @str converted to lower case, with * semantics that exactly match g_ascii_tolower(). (Note * that this is unlike the old g_strdown(), which modified * the string in place.) **/ gchar* g_ascii_strdown (const gchar *str, gssize len) { gchar *result, *s; g_return_val_if_fail (str != NULL, NULL); if (len < 0) len = strlen (str); result = g_strndup (str, len); for (s = result; *s; s++) *s = g_ascii_tolower (*s); return result; } #endif /** * g_ascii_strup: * @str: a string. * @len: length of @str in bytes, or -1 if @str is nul-terminated. * * Converts all lower case ASCII letters to upper case ASCII letters. * * Return value: a newly allocated string, with all the lower case * characters in @str converted to upper case, with * semantics that exactly match g_ascii_toupper(). (Note * that this is unlike the old g_strup(), which modified * the string in place.) **/ gchar* g_ascii_strup (const gchar *str, gssize len) { gchar *result, *s; g_return_val_if_fail (str != NULL, NULL); if (len < 0) len = strlen (str); result = g_strndup (str, len); for (s = result; *s; s++) *s = g_ascii_toupper (*s); return result; } #if 0 /** * g_strdown: * @string: the string to convert. * * Converts a string to lower case. * * Return value: the string * * Deprecated:2.2: This function is totally broken for the reasons discussed * in the g_strncasecmp() docs - use g_ascii_strdown() or g_utf8_strdown() * instead. **/ gchar* g_strdown (gchar *string) { register guchar *s; g_return_val_if_fail (string != NULL, NULL); s = (guchar *) string; while (*s) { if (isupper (*s)) *s = tolower (*s); s++; } return (gchar *) string; } /** * g_strup: * @string: the string to convert. * * Converts a string to upper case. * * Return value: the string * * Deprecated:2.2: This function is totally broken for the reasons discussed * in the g_strncasecmp() docs - use g_ascii_strup() or g_utf8_strup() instead. **/ gchar* g_strup (gchar *string) { register guchar *s; g_return_val_if_fail (string != NULL, NULL); s = (guchar *) string; while (*s) { if (islower (*s)) *s = toupper (*s); s++; } return (gchar *) string; } gchar* g_strreverse (gchar *string) { g_return_val_if_fail (string != NULL, NULL); if (*string) { register gchar *h, *t; h = string; t = string + strlen (string) - 1; while (h < t) { register gchar c; c = *h; *h = *t; h++; *t = c; t--; } } return string; } /** * g_ascii_tolower: * @c: any character. * * Convert a character to ASCII lower case. * * Unlike the standard C library tolower() function, this only * recognizes standard ASCII letters and ignores the locale, returning * all non-ASCII characters unchanged, even if they are lower case * letters in a particular character set. Also unlike the standard * library function, this takes and returns a char, not an int, so * don't call it on %EOF but no need to worry about casting to #guchar * before passing a possibly non-ASCII character in. * * Return value: the result of converting @c to lower case. * If @c is not an ASCII upper case letter, * @c is returned unchanged. **/ gchar g_ascii_tolower (gchar c) { return g_ascii_isupper (c) ? c - 'A' + 'a' : c; } #endif /** * g_ascii_toupper: * @c: any character. * * Convert a character to ASCII upper case. * * Unlike the standard C library toupper() function, this only * recognizes standard ASCII letters and ignores the locale, returning * all non-ASCII characters unchanged, even if they are upper case * letters in a particular character set. Also unlike the standard * library function, this takes and returns a char, not an int, so * don't call it on %EOF but no need to worry about casting to #guchar * before passing a possibly non-ASCII character in. * * Return value: the result of converting @c to upper case. * If @c is not an ASCII lower case letter, * @c is returned unchanged. **/ gchar g_ascii_toupper (gchar c) { return g_ascii_islower (c) ? c - 'a' + 'A' : c; } #if 0 /** * g_ascii_digit_value: * @c: an ASCII character. * * Determines the numeric value of a character as a decimal * digit. Differs from g_unichar_digit_value() because it takes * a char, so there's no worry about sign extension if characters * are signed. * * Return value: If @c is a decimal digit (according to * g_ascii_isdigit()), its numeric value. Otherwise, -1. **/ int g_ascii_digit_value (gchar c) { if (g_ascii_isdigit (c)) return c - '0'; return -1; } /** * g_ascii_xdigit_value: * @c: an ASCII character. * * Determines the numeric value of a character as a hexidecimal * digit. Differs from g_unichar_xdigit_value() because it takes * a char, so there's no worry about sign extension if characters * are signed. * * Return value: If @c is a hex digit (according to * g_ascii_isxdigit()), its numeric value. Otherwise, -1. **/ int g_ascii_xdigit_value (gchar c) { if (c >= 'A' && c <= 'F') return c - 'A' + 10; if (c >= 'a' && c <= 'f') return c - 'a' + 10; return g_ascii_digit_value (c); } /** * g_ascii_strcasecmp: * @s1: string to compare with @s2. * @s2: string to compare with @s1. * * Compare two strings, ignoring the case of ASCII characters. * * Unlike the BSD strcasecmp() function, this only recognizes standard * ASCII letters and ignores the locale, treating all non-ASCII * bytes as if they are not letters. * * This function should be used only on strings that are known to be * in encodings where the bytes corresponding to ASCII letters always * represent themselves. This includes UTF-8 and the ISO-8859-* * charsets, but not for instance double-byte encodings like the * Windows Codepage 932, where the trailing bytes of double-byte * characters include all ASCII letters. If you compare two CP932 * strings using this function, you will get false matches. * * Return value: 0 if the strings match, a negative value if @s1 < @s2, * or a positive value if @s1 > @s2. **/ gint g_ascii_strcasecmp (const gchar *s1, const gchar *s2) { gint c1, c2; g_return_val_if_fail (s1 != NULL, 0); g_return_val_if_fail (s2 != NULL, 0); while (*s1 && *s2) { c1 = (gint)(guchar) TOLOWER (*s1); c2 = (gint)(guchar) TOLOWER (*s2); if (c1 != c2) return (c1 - c2); s1++; s2++; } return (((gint)(guchar) *s1) - ((gint)(guchar) *s2)); } /** * g_ascii_strncasecmp: * @s1: string to compare with @s2. * @s2: string to compare with @s1. * @n: number of characters to compare. * * Compare @s1 and @s2, ignoring the case of ASCII characters and any * characters after the first @n in each string. * * Unlike the BSD strcasecmp() function, this only recognizes standard * ASCII letters and ignores the locale, treating all non-ASCII * characters as if they are not letters. * * The same warning as in g_ascii_strcasecmp() applies: Use this * function only on strings known to be in encodings where bytes * corresponding to ASCII letters always represent themselves. * * Return value: 0 if the strings match, a negative value if @s1 < @s2, * or a positive value if @s1 > @s2. **/ gint g_ascii_strncasecmp (const gchar *s1, const gchar *s2, gsize n) { gint c1, c2; g_return_val_if_fail (s1 != NULL, 0); g_return_val_if_fail (s2 != NULL, 0); while (n && *s1 && *s2) { n -= 1; c1 = (gint)(guchar) TOLOWER (*s1); c2 = (gint)(guchar) TOLOWER (*s2); if (c1 != c2) return (c1 - c2); s1++; s2++; } if (n) return (((gint) (guchar) *s1) - ((gint) (guchar) *s2)); else return 0; } /** * g_strcasecmp: * @s1: a string. * @s2: a string to compare with @s1. * * A case-insensitive string comparison, corresponding to the standard * strcasecmp() function on platforms which support it. * * Return value: 0 if the strings match, a negative value if @s1 < @s2, * or a positive value if @s1 > @s2. * * Deprecated:2.2: See g_strncasecmp() for a discussion of why this function * is deprecated and how to replace it. **/ gint g_strcasecmp (const gchar *s1, const gchar *s2) { #ifdef HAVE_STRCASECMP g_return_val_if_fail (s1 != NULL, 0); g_return_val_if_fail (s2 != NULL, 0); return strcasecmp (s1, s2); #else gint c1, c2; g_return_val_if_fail (s1 != NULL, 0); g_return_val_if_fail (s2 != NULL, 0); while (*s1 && *s2) { /* According to A. Cox, some platforms have islower's that * don't work right on non-uppercase */ c1 = isupper ((guchar)*s1) ? tolower ((guchar)*s1) : *s1; c2 = isupper ((guchar)*s2) ? tolower ((guchar)*s2) : *s2; if (c1 != c2) return (c1 - c2); s1++; s2++; } return (((gint)(guchar) *s1) - ((gint)(guchar) *s2)); #endif } /** * g_strncasecmp: * @s1: a string. * @s2: a string to compare with @s1. * @n: the maximum number of characters to compare. * * A case-insensitive string comparison, corresponding to the standard * strncasecmp() function on platforms which support it. * It is similar to g_strcasecmp() except it only compares the first @n * characters of the strings. * * Return value: 0 if the strings match, a negative value if @s1 < @s2, * or a positive value if @s1 > @s2. * * Deprecated:2.2: The problem with g_strncasecmp() is that it does the * comparison by calling toupper()/tolower(). These functions are * locale-specific and operate on single bytes. However, it is impossible * to handle things correctly from an I18N standpoint by operating on * bytes, since characters may be multibyte. Thus g_strncasecmp() is * broken if your string is guaranteed to be ASCII, since it's * locale-sensitive, and it's broken if your string is localized, since * it doesn't work on many encodings at all, including UTF-8, EUC-JP, * etc. * * There are therefore two replacement functions: g_ascii_strncasecmp(), * which only works on ASCII and is not locale-sensitive, and * g_utf8_casefold(), which is good for case-insensitive sorting of UTF-8. **/ gint g_strncasecmp (const gchar *s1, const gchar *s2, guint n) { #ifdef HAVE_STRNCASECMP return strncasecmp (s1, s2, n); #else gint c1, c2; g_return_val_if_fail (s1 != NULL, 0); g_return_val_if_fail (s2 != NULL, 0); while (n && *s1 && *s2) { n -= 1; /* According to A. Cox, some platforms have islower's that * don't work right on non-uppercase */ c1 = isupper ((guchar)*s1) ? tolower ((guchar)*s1) : *s1; c2 = isupper ((guchar)*s2) ? tolower ((guchar)*s2) : *s2; if (c1 != c2) return (c1 - c2); s1++; s2++; } if (n) return (((gint) (guchar) *s1) - ((gint) (guchar) *s2)); else return 0; #endif } gchar* g_strdelimit (gchar *string, const gchar *delimiters, gchar new_delim) { register gchar *c; g_return_val_if_fail (string != NULL, NULL); if (!delimiters) delimiters = G_STR_DELIMITERS; for (c = string; *c; c++) { if (strchr (delimiters, *c)) *c = new_delim; } return string; } gchar* g_strcanon (gchar *string, const gchar *valid_chars, gchar substitutor) { register gchar *c; g_return_val_if_fail (string != NULL, NULL); g_return_val_if_fail (valid_chars != NULL, NULL); for (c = string; *c; c++) { if (!strchr (valid_chars, *c)) *c = substitutor; } return string; } gchar* g_strcompress (const gchar *source) { const gchar *p = source, *octal; gchar *dest = g_malloc (strlen (source) + 1); gchar *q = dest; while (*p) { if (*p == '\\') { p++; switch (*p) { case '\0': g_warning ("g_strcompress: trailing \\"); goto out; case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': *q = 0; octal = p; while ((p < octal + 3) && (*p >= '0') && (*p <= '7')) { *q = (*q * 8) + (*p - '0'); p++; } q++; p--; break; case 'b': *q++ = '\b'; break; case 'f': *q++ = '\f'; break; case 'n': *q++ = '\n'; break; case 'r': *q++ = '\r'; break; case 't': *q++ = '\t'; break; default: /* Also handles \" and \\ */ *q++ = *p; break; } } else *q++ = *p; p++; } out: *q = 0; return dest; } gchar * g_strescape (const gchar *source, const gchar *exceptions) { const guchar *p; gchar *dest; gchar *q; guchar excmap[256]; g_return_val_if_fail (source != NULL, NULL); p = (guchar *) source; /* Each source byte needs maximally four destination chars (\777) */ q = dest = g_malloc (strlen (source) * 4 + 1); memset (excmap, 0, 256); if (exceptions) { guchar *e = (guchar *) exceptions; while (*e) { excmap[*e] = 1; e++; } } while (*p) { if (excmap[*p]) *q++ = *p; else { switch (*p) { case '\b': *q++ = '\\'; *q++ = 'b'; break; case '\f': *q++ = '\\'; *q++ = 'f'; break; case '\n': *q++ = '\\'; *q++ = 'n'; break; case '\r': *q++ = '\\'; *q++ = 'r'; break; case '\t': *q++ = '\\'; *q++ = 't'; break; case '\\': *q++ = '\\'; *q++ = '\\'; break; case '"': *q++ = '\\'; *q++ = '"'; break; default: if ((*p < ' ') || (*p >= 0177)) { *q++ = '\\'; *q++ = '0' + (((*p) >> 6) & 07); *q++ = '0' + (((*p) >> 3) & 07); *q++ = '0' + ((*p) & 07); } else *q++ = *p; break; } } p++; } *q = 0; return dest; } gchar* g_strchug (gchar *string) { guchar *start; g_return_val_if_fail (string != NULL, NULL); for (start = (guchar*) string; *start && g_ascii_isspace (*start); start++) ; g_memmove (string, start, strlen ((gchar *) start) + 1); return string; } gchar* g_strchomp (gchar *string) { gsize len; g_return_val_if_fail (string != NULL, NULL); len = strlen (string); while (len--) { if (g_ascii_isspace ((guchar) string[len])) string[len] = '\0'; else break; } return string; } /** * g_strsplit: * @string: a string to split. * @delimiter: a string which specifies the places at which to split the string. * The delimiter is not included in any of the resulting strings, unless * @max_tokens is reached. * @max_tokens: the maximum number of pieces to split @string into. If this is * less than 1, the string is split completely. * * Splits a string into a maximum of @max_tokens pieces, using the given * @delimiter. If @max_tokens is reached, the remainder of @string is appended * to the last token. * * As a special case, the result of splitting the empty string "" is an empty * vector, not a vector containing a single string. The reason for this * special case is that being able to represent a empty vector is typically * more useful than consistent handling of empty elements. If you do need * to represent empty elements, you'll need to check for the empty string * before calling g_strsplit(). * * Return value: a newly-allocated %NULL-terminated array of strings. Use * g_strfreev() to free it. **/ gchar** g_strsplit (const gchar *string, const gchar *delimiter, gint max_tokens) { GSList *string_list = NULL, *slist; gchar **str_array, *s; guint n = 0; const gchar *remainder; g_return_val_if_fail (string != NULL, NULL); g_return_val_if_fail (delimiter != NULL, NULL); g_return_val_if_fail (delimiter[0] != '\0', NULL); if (max_tokens < 1) max_tokens = G_MAXINT; remainder = string; s = strstr (remainder, delimiter); if (s) { gsize delimiter_len = strlen (delimiter); while (--max_tokens && s) { gsize len; gchar *new_string; len = s - remainder; new_string = g_new (gchar, len + 1); strncpy (new_string, remainder, len); new_string[len] = 0; string_list = g_slist_prepend (string_list, new_string); n++; remainder = s + delimiter_len; s = strstr (remainder, delimiter); } } if (*string) { n++; string_list = g_slist_prepend (string_list, g_strdup (remainder)); } str_array = g_new (gchar*, n + 1); str_array[n--] = NULL; for (slist = string_list; slist; slist = slist->next) str_array[n--] = slist->data; g_slist_free (string_list); return str_array; } /** * g_strsplit_set: * @string: The string to be tokenized * @delimiters: A nul-terminated string containing bytes that are used * to split the string. * @max_tokens: The maximum number of tokens to split @string into. * If this is less than 1, the string is split completely * * Splits @string into a number of tokens not containing any of the characters * in @delimiter. A token is the (possibly empty) longest string that does not * contain any of the characters in @delimiters. If @max_tokens is reached, the * remainder is appended to the last token. * * For example the result of g_strsplit_set ("abc:def/ghi", ":/", -1) is a * %NULL-terminated vector containing the three strings "abc", "def", * and "ghi". * * The result if g_strsplit_set (":def/ghi:", ":/", -1) is a %NULL-terminated * vector containing the four strings "", "def", "ghi", and "". * * As a special case, the result of splitting the empty string "" is an empty * vector, not a vector containing a single string. The reason for this * special case is that being able to represent a empty vector is typically * more useful than consistent handling of empty elements. If you do need * to represent empty elements, you'll need to check for the empty string * before calling g_strsplit_set(). * * Note that this function works on bytes not characters, so it can't be used * to delimit UTF-8 strings for anything but ASCII characters. * * Return value: a newly-allocated %NULL-terminated array of strings. Use * g_strfreev() to free it. * * Since: 2.4 **/ gchar ** g_strsplit_set (const gchar *string, const gchar *delimiters, gint max_tokens) { gboolean delim_table[256]; GSList *tokens, *list; gint n_tokens; const gchar *s; const gchar *current; gchar *token; gchar **result; g_return_val_if_fail (string != NULL, NULL); g_return_val_if_fail (delimiters != NULL, NULL); if (max_tokens < 1) max_tokens = G_MAXINT; if (*string == '\0') { result = g_new (char *, 1); result[0] = NULL; return result; } memset (delim_table, FALSE, sizeof (delim_table)); for (s = delimiters; *s != '\0'; ++s) delim_table[*(guchar *)s] = TRUE; tokens = NULL; n_tokens = 0; s = current = string; while (*s != '\0') { if (delim_table[*(guchar *)s] && n_tokens + 1 < max_tokens) { gchar *token; token = g_strndup (current, s - current); tokens = g_slist_prepend (tokens, token); ++n_tokens; current = s + 1; } ++s; } token = g_strndup (current, s - current); tokens = g_slist_prepend (tokens, token); ++n_tokens; result = g_new (gchar *, n_tokens + 1); result[n_tokens] = NULL; for (list = tokens; list != NULL; list = list->next) result[--n_tokens] = list->data; g_slist_free (tokens); return result; } /** * g_strfreev: * @str_array: a %NULL-terminated array of strings to free. * Frees a %NULL-terminated array of strings, and the array itself. * If called on a %NULL value, g_strfreev() simply returns. **/ void g_strfreev (gchar **str_array) { if (str_array) { int i; for(i = 0; str_array[i] != NULL; i++) g_free(str_array[i]); g_free (str_array); } } /** * g_strdupv: * @str_array: %NULL-terminated array of strings. * * Copies %NULL-terminated array of strings. The copy is a deep copy; * the new array should be freed by first freeing each string, then * the array itself. g_strfreev() does this for you. If called * on a %NULL value, g_strdupv() simply returns %NULL. * * Return value: a new %NULL-terminated array of strings. **/ gchar** g_strdupv (gchar **str_array) { if (str_array) { gint i; gchar **retval; i = 0; while (str_array[i]) ++i; retval = g_new (gchar*, i + 1); i = 0; while (str_array[i]) { retval[i] = g_strdup (str_array[i]); ++i; } retval[i] = NULL; return retval; } else return NULL; } gchar* g_strjoinv (const gchar *separator, gchar **str_array) { gchar *string; gchar *ptr; g_return_val_if_fail (str_array != NULL, NULL); if (separator == NULL) separator = ""; if (*str_array) { gint i; gsize len; gsize separator_len; separator_len = strlen (separator); /* First part, getting length */ len = 1 + strlen (str_array[0]); for (i = 1; str_array[i] != NULL; i++) len += strlen (str_array[i]); len += separator_len * (i - 1); /* Second part, building string */ string = g_new (gchar, len); ptr = g_stpcpy (string, *str_array); for (i = 1; str_array[i] != NULL; i++) { ptr = g_stpcpy (ptr, separator); ptr = g_stpcpy (ptr, str_array[i]); } } else string = g_strdup (""); return string; } gchar* g_strjoin (const gchar *separator, ...) { gchar *string, *s; va_list args; gsize len; gsize separator_len; gchar *ptr; if (separator == NULL) separator = ""; separator_len = strlen (separator); va_start (args, separator); s = va_arg (args, gchar*); if (s) { /* First part, getting length */ len = 1 + strlen (s); s = va_arg (args, gchar*); while (s) { len += separator_len + strlen (s); s = va_arg (args, gchar*); } va_end (args); /* Second part, building string */ string = g_new (gchar, len); va_start (args, separator); s = va_arg (args, gchar*); ptr = g_stpcpy (string, s); s = va_arg (args, gchar*); while (s) { ptr = g_stpcpy (ptr, separator); ptr = g_stpcpy (ptr, s); s = va_arg (args, gchar*); } } else string = g_strdup (""); va_end (args); return string; } #endif /** * g_strstr_len: * @haystack: a string. * @haystack_len: the maximum length of @haystack. * @needle: the string to search for. * * Searches the string @haystack for the first occurrence * of the string @needle, limiting the length of the search * to @haystack_len. * * Return value: a pointer to the found occurrence, or * %NULL if not found. **/ gchar * g_strstr_len (const gchar *haystack, gssize haystack_len, const gchar *needle) { g_return_val_if_fail (haystack != NULL, NULL); g_return_val_if_fail (needle != NULL, NULL); if (haystack_len < 0) return strstr (haystack, needle); else { const gchar *p = haystack; gsize needle_len = strlen (needle); const gchar *end; gsize i; if (needle_len == 0) return (gchar *)haystack; if (haystack_len < needle_len) return NULL; end = haystack + haystack_len - needle_len; while (*p && p <= end) { for (i = 0; i < needle_len; i++) if (p[i] != needle[i]) goto next; return (gchar *)p; next: p++; } return NULL; } } #if 0 /** * g_strrstr: * @haystack: a nul-terminated string. * @needle: the nul-terminated string to search for. * * Searches the string @haystack for the last occurrence * of the string @needle. * * Return value: a pointer to the found occurrence, or * %NULL if not found. **/ gchar * g_strrstr (const gchar *haystack, const gchar *needle) { gsize i; gsize needle_len; gsize haystack_len; const gchar *p; g_return_val_if_fail (haystack != NULL, NULL); g_return_val_if_fail (needle != NULL, NULL); needle_len = strlen (needle); haystack_len = strlen (haystack); if (needle_len == 0) return (gchar *)haystack; if (haystack_len < needle_len) return NULL; p = haystack + haystack_len - needle_len; while (p >= haystack) { for (i = 0; i < needle_len; i++) if (p[i] != needle[i]) goto next; return (gchar *)p; next: p--; } return NULL; } /** * g_strrstr_len: * @haystack: a nul-terminated string. * @haystack_len: the maximum length of @haystack. * @needle: the nul-terminated string to search for. * * Searches the string @haystack for the last occurrence * of the string @needle, limiting the length of the search * to @haystack_len. * * Return value: a pointer to the found occurrence, or * %NULL if not found. **/ gchar * g_strrstr_len (const gchar *haystack, gssize haystack_len, const gchar *needle) { g_return_val_if_fail (haystack != NULL, NULL); g_return_val_if_fail (needle != NULL, NULL); if (haystack_len < 0) return g_strrstr (haystack, needle); else { gsize needle_len = strlen (needle); const gchar *haystack_max = haystack + haystack_len; const gchar *p = haystack; gsize i; while (p < haystack_max && *p) p++; if (p < haystack + needle_len) return NULL; p -= needle_len; while (p >= haystack) { for (i = 0; i < needle_len; i++) if (p[i] != needle[i]) goto next; return (gchar *)p; next: p--; } return NULL; } } /** * g_str_has_suffix: * @str: a nul-terminated string. * @suffix: the nul-terminated suffix to look for. * * Looks whether the string @str ends with @suffix. * * Return value: %TRUE if @str end with @suffix, %FALSE otherwise. * * Since: 2.2 **/ gboolean g_str_has_suffix (const gchar *str, const gchar *suffix) { int str_len; int suffix_len; g_return_val_if_fail (str != NULL, FALSE); g_return_val_if_fail (suffix != NULL, FALSE); str_len = strlen (str); suffix_len = strlen (suffix); if (str_len < suffix_len) return FALSE; return strcmp (str + str_len - suffix_len, suffix) == 0; } /** * g_str_has_prefix: * @str: a nul-terminated string. * @prefix: the nul-terminated prefix to look for. * * Looks whether the string @str begins with @prefix. * * Return value: %TRUE if @str begins with @prefix, %FALSE otherwise. * * Since: 2.2 **/ gboolean g_str_has_prefix (const gchar *str, const gchar *prefix) { int str_len; int prefix_len; g_return_val_if_fail (str != NULL, FALSE); g_return_val_if_fail (prefix != NULL, FALSE); str_len = strlen (str); prefix_len = strlen (prefix); if (str_len < prefix_len) return FALSE; return strncmp (str, prefix, prefix_len) == 0; } /** * g_strip_context: * @msgid: a string * @msgval: another string * * An auxiliary function for gettext() support (see Q_()). * * Return value: @msgval, unless @msgval is identical to @msgid and contains * a '|' character, in which case a pointer to the substring of msgid after * the first '|' character is returned. * * Since: 2.4 **/ G_CONST_RETURN gchar * g_strip_context (const gchar *msgid, const gchar *msgval) { if (msgval == msgid) { const char *c = strchr (msgid, '|'); if (c != NULL) return c + 1; } return msgval; } /** * g_strv_length: * @str_array: a %NULL-terminated array of strings. * * Returns the length of the given %NULL-terminated * string array @str_array. * * Return value: length of @str_array. * * Since: 2.6 **/ guint g_strv_length (gchar **str_array) { guint i = 0; g_return_val_if_fail (str_array != NULL, 0); while (str_array[i]) ++i; return i; } #define __G_STRFUNCS_C__ #include "galiasdef.c" #endif