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-rw-r--r--camel/gstring-util.c329
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diff --git a/camel/gstring-util.c b/camel/gstring-util.c
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--- a/camel/gstring-util.c
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-/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
-/* gstring-util : utilities for gstring object */
-
-/*
- *
- * Author :
- * Bertrand Guiheneuf <bertrand@helixcode.com>
- *
- * Copyright 1999, 2000 Helix Code, Inc. (http://www.helixcode.com)
- *
- * This program 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 2 of the
- * License, or (at your option) any later version.
- *
- * This program 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 program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
- * USA
- */
-
-
-
-#include <config.h>
-#include "gstring-util.h"
-#include <string.h>
-
-/**
- * g_string_equals : test if two string are equal
- *
- * @string1 : first string
- * @string2 : second string
- *
- * @Return Value : true if the strings equal, false otherwise
- **/
-gboolean
-g_string_equals (GString *string1, GString *string2)
-{
- g_assert (string1);
- g_assert (string2);
- return !strcmp (string1->str, string2->str);
-}
-
-
-
-
-/**
- * g_string_clone : clone a GString
- *
- * @string : the string to clone
- *
- * @Return Value : the clone ...
- **/
-GString *
-g_string_clone (GString *string)
-{
- return g_string_new (g_strdup (string->str) );
-}
-
-
-
-
-/**
- * g_string_dichotomy:
- * @sep : separator
- * @prefix: pointer to be field by the prefix object
- * the prefix is not returned when the given pointer is NULL
- * @suffix: pointer to be field by the suffix object
- * the suffix is not returned when the given pointer is NULL
- *
- * Return the strings before and/or after
- * the last occurence of the specified separator
- *
- * This routine returns the string before and/or after
- * a character given as an argument.
- * if the separator is the last character, prefix and/or
- * suffix is set to NULL and result is set to 'l'
- * if the separator is not in the list, prefix and/or
- * suffix is set to NULL and result is set to 'n'
- * When the operation succedeed, the return value is 'o'
- *
- * @Return Value : result of the operation ('o', 'l' or 'n')
- *
- **/
-gchar
-g_string_dichotomy (GString *string, gchar sep, GString **prefix, GString **suffix,
- GStringDichotomyOption options)
-{
- gchar *str, *tmp;
- gint pos, len, first;
-
- g_assert (tmp=string->str);
- len = strlen (tmp);
- if (!len) {
- if (prefix)
- *prefix=NULL;
- if (suffix)
- *suffix=NULL;
- return 'n';
- }
- first = 0;
-
- if ((options & GSTRING_DICHOTOMY_STRIP_LEADING ) && (tmp[first] == sep) )
- do {first++;} while ( (first<len) && (tmp[first] == sep) );
-
- if (options & GSTRING_DICHOTOMY_STRIP_TRAILING )
- while (tmp[len-1] == sep)
- len--;
-
- if (first==len) {
- if (prefix) *prefix=NULL;
- if (suffix) *suffix=NULL;
- return 'n';
- }
-
- if (options & GSTRING_DICHOTOMY_RIGHT_DIR) {
- pos = len;
-
- do {
- pos--;
- } while ((pos>=first) && (tmp[pos]!=sep));
- } else {
- pos = first;
- do {
- pos++;
- } while ((pos<len) && (tmp[pos]!=sep));
-
- }
-
- if ( (pos<first) || (pos>=len) )
- {
- if (suffix) *suffix=NULL;
- if (prefix) *prefix=NULL;
- return 'n';
- }
-
- /* if we have stripped trailing separators, we should */
- /* never enter here */
- if (pos==len-1)
- {
- if (suffix) *suffix=NULL;
- if (prefix) *prefix=NULL;
- return 'l';
- }
- /* if we have stripped leading separators, we should */
- /* never enter here */
- if (pos==first)
- {
- if (suffix) *suffix=NULL;
- if (prefix) *prefix=NULL;
- return 'l';
- }
-
- if (prefix) /* return the prefix */
- {
- str = g_strndup(tmp,pos);
- *prefix = g_string_new(str);
- g_free(str);
- }
- if (suffix) /* return the suffix */
- {
- str = g_strdup(tmp+pos+1);
- *suffix = g_string_new(str);
- g_free(str);
- }
-
- return 'o';
-}
-
-
-/**
- * g_string_append_g_string : append a GString to another GString
- *
- * @dest_string : string which will be appended
- * @other_string : string to append
- *
- **/
-void
-g_string_append_g_string(GString *dest_string, GString *other_string)
-{
- g_assert(other_string);
- g_assert(dest_string);
- g_assert(other_string->str);
-
- g_string_append(dest_string, other_string->str);
-}
-
-
-
-/**
- * g_string_equal_for_hash: test equality of two GStrings for hash tables
- * @v: string 1
- * @v2: string 2
- *
- *
- *
- * Return value:
- **/
-gint
-g_string_equal_for_hash (gconstpointer v, gconstpointer v2)
-{
- return strcmp ( ((const GString*)v)->str, ((const GString*)v2)->str) == 0;
-}
-
-gint
-g_string_equal_for_glist (gconstpointer v, gconstpointer v2)
-{
- return !strcmp ( ((const GString*)v)->str, ((const GString*)v2)->str) == 0;
-}
-
-
-/**
- * g_string_hash: computes a hash value for a Gstring
- * @v: Gstring object
- *
- *
- *
- * Return value:
- **/
-guint
-g_string_hash (gconstpointer v)
-{
- return g_str_hash(((const GString*)v)->str);
-}
-
-
-
-
-/* utility func : frees a GString element in a GList */
-static void
-__g_string_list_free_string (gpointer data, gpointer user_data)
-{
- GString *string = (GString *)data;
- g_string_free(string, TRUE);
-}
-
-
-void
-g_string_list_free (GList *string_list)
-{
- g_list_foreach(string_list, __g_string_list_free_string, NULL);
- g_list_free(string_list);
-}
-
-
-
-
-
-
-GList *
-g_string_split (GString *string, char sep, gchar *trim_chars, GStringTrimOption trim_options)
-{
- GList *result = NULL;
- gint first, last, pos;
- gchar *str;
- gchar *new_str;
- GString *new_gstring;
-
- g_assert (string);
- str = string->str;
- if (!str) return NULL;
-
- first = 0;
- last = strlen(str) - 1;
-
- /* strip leading and trailing separators */
- while ( (first<=last) && (str[first]==sep) )
- first++;
- while ( (first<=last) && (str[last]==sep) )
- last--;
-
-
- while (first<=last) {
- pos = first;
- /* find next separator */
- while ((pos<=last) && (str[pos]!=sep)) pos++;
- if (first != pos) {
- new_str = g_strndup (str+first, pos-first);
- new_gstring = g_string_new (new_str);
- g_free (new_str);
- /* could do trimming in line to speed up this code */
- if (trim_chars) g_string_trim (new_gstring, trim_chars, trim_options);
- result = g_list_append (result, new_gstring);
- }
- first = pos + 1;
- }
-
- return result;
-}
-
-
-void
-g_string_trim (GString *string, gchar *chars, GStringTrimOption options)
-{
- gint first_ok;
- gint last_ok;
- guint length;
- gchar *str;
-
- if ((!string) || (!string->str))
- return;
- str = string->str;
- length = strlen (str);
- if (!length)
- return;
-
- first_ok = 0;
- last_ok = length - 1;
-
- if (options & GSTRING_TRIM_STRIP_LEADING)
- while ( (first_ok <= last_ok) && (strchr (chars, str[first_ok])) )
- first_ok++;
-
- if (options & GSTRING_TRIM_STRIP_TRAILING)
- while ( (first_ok <= last_ok) && (strchr (chars, str[last_ok])) )
- last_ok++;
-
- if (first_ok > 0)
- g_string_erase (string, 0, first_ok);
-
- if (last_ok < length-1)
- g_string_truncate (string, last_ok - first_ok +1);
-
-}
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