mirror of https://github.com/djcb/mu.git
658 lines
13 KiB
C
658 lines
13 KiB
C
/* -*-mode: c; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-*/
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/*
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** Copyright (C) 2008-2011 Dirk-Jan C. Binnema <djcb@djcbsoftware.nl>
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**
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** This program is free software; you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation; either version 3 of the License, or
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** (at your option) any later version.
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**
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** This program is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU General Public License for more details.
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**
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** You should have received a copy of the GNU General Public License
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** along with this program; if not, write to the Free Software Foundation,
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** Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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**
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*/
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#if HAVE_CONFIG_H
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#include "config.h"
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#endif /*HAVE_CONFIG_H*/
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#include <glib.h>
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#include <string.h>
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#include <ctype.h>
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#include <stdlib.h>
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#include <stdio.h>
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/* hopefully, this should get us a sane PATH_MAX */
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#include <limits.h>
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/* not all systems provide PATH_MAX in limits.h */
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#ifndef PATH_MAX
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#include <sys/param.h>
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#ifndef PATH_MAX
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#define PATH_MAX MAXPATHLEN
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#endif /*!PATH_MAX*/
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#endif /*PATH_MAX*/
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#include "mu-str.h"
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#include "mu-msg-fields.h"
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const char*
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mu_str_size_s (size_t s)
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{
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static char buf[32];
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#ifdef HAVE_GLIB216
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char *tmp;
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tmp = g_format_size_for_display ((goffset)s);
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strncpy (buf, tmp, sizeof(buf));
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buf[sizeof(buf) -1] = '\0'; /* just in case */
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g_free (tmp);
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#else
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if (s >= 1000 * 1000)
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g_snprintf(buf, sizeof(buf), "%.1f MB",
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(double)s/(1000*1000));
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else
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g_snprintf(buf, sizeof(buf), "%.1f kB", (double)s/(1000));
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#endif /*HAVE_GLIB216*/
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return buf;
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}
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char*
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mu_str_size (size_t s)
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{
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return g_strdup (mu_str_size_s(s));
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}
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const char*
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mu_str_flags_s (MuFlags flags)
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{
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return mu_flags_to_str_s (flags, MU_FLAG_TYPE_ANY);
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}
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char*
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mu_str_flags (MuFlags flags)
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{
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return g_strdup (mu_str_flags_s(flags));
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}
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char*
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mu_str_summarize (const char* str, size_t max_lines)
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{
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char *summary;
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size_t nl_seen;
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unsigned i,j;
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gboolean last_was_blank;
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g_return_val_if_fail (str, NULL);
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g_return_val_if_fail (max_lines > 0, NULL);
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/* len for summary <= original len */
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summary = g_new (gchar, strlen(str) + 1);
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/* copy the string up to max_lines lines, replace CR/LF/tab with
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* single space */
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for (i = j = 0, nl_seen = 0, last_was_blank = TRUE;
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nl_seen < max_lines && str[i] != '\0'; ++i) {
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if (str[i] == '\n' || str[i] == '\r' ||
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str[i] == '\t' || str[i] == ' ' ) {
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if (str[i] == '\n')
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++nl_seen;
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/* no double-blanks or blank at end of str */
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if (!last_was_blank && str[i+1] != '\0')
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summary[j++] = ' ';
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last_was_blank = TRUE;
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} else {
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summary[j++] = str[i];
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last_was_blank = FALSE;
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}
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}
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summary[j] = '\0';
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return summary;
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}
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static void
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cleanup_contact (char *contact)
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{
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char *c, *c2;
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/* replace "'<> with space */
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for (c2 = contact; *c2; ++c2)
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if (*c2 == '"' || *c2 == '\'' || *c2 == '<' || *c2 == '>')
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*c2 = ' ';
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/* remove everything between '()' if it's after the 5th pos;
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* good to cleanup corporate contact address spam... */
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c = g_strstr_len (contact, -1, "(");
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if (c && c - contact > 5)
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*c = '\0';
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g_strstrip (contact);
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}
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/* this is still somewhat simplistic... */
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const char*
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mu_str_display_contact_s (const char *str)
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{
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static gchar contact[255];
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gchar *c, *c2;
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str = str ? str : "";
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g_strlcpy (contact, str, sizeof(contact));
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/* we check for '<', so we can strip out the address stuff in
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* e.g. 'Hello World <hello@world.xx>, but only if there is
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* something alphanumeric before the <
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*/
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c = g_strstr_len (contact, -1, "<");
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if (c != NULL) {
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for (c2 = contact; c2 < c && !(isalnum(*c2)); ++c2);
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if (c2 != c) /* apparently, there was something,
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* so we can remove the <... part*/
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*c = '\0';
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}
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cleanup_contact (contact);
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return contact;
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}
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char*
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mu_str_display_contact (const char *str)
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{
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g_return_val_if_fail (str, NULL);
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return g_strdup (mu_str_display_contact_s (str));
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}
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struct _CheckPrefix {
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const char *pfx;
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guint len;
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gboolean match;
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};
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typedef struct _CheckPrefix CheckPrefix;
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static void
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each_check_prefix (MuMsgFieldId mfid, CheckPrefix *cpfx)
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{
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const char *field_name;
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char field_shortcut;
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if (!cpfx || cpfx->match)
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return;
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field_shortcut = mu_msg_field_shortcut (mfid);
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if (field_shortcut == cpfx->pfx[0] && cpfx->pfx[1] == ':') {
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cpfx->match = TRUE;
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return;
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}
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field_name = mu_msg_field_name (mfid);
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if (field_name &&
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strncmp (cpfx->pfx, field_name, cpfx->len) == 0) {
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cpfx->match = TRUE;
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return;
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}
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}
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/* 'colon' points at a position inside q pointing at a ':'
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* character. function determines whether the prefix is a registered
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* prefix (like 'subject' or 'from' or 's') */
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static gboolean
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is_xapian_prefix (const char *q, const char *colon)
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{
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const char *cur;
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if (colon == q)
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return FALSE; /* : at beginning, not a prefix */
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/* track back from colon until a boundary or beginning of the
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* str */
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for (cur = colon - 1; cur >= q; --cur) {
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if (cur == q || !isalpha (*(cur-1))) {
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CheckPrefix cpfx;
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memset (&cpfx, 0, sizeof(CheckPrefix));
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cpfx.pfx = cur;
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cpfx.len = (colon - cur);
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cpfx.match = FALSE;
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mu_msg_field_foreach ((MuMsgFieldForEachFunc)
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each_check_prefix,
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&cpfx);
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return (cpfx.match);
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}
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}
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return FALSE;
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}
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gint64
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mu_str_size_parse_bkm (const char* str)
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{
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gint64 num;
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g_return_val_if_fail (str, -1);
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if (!isdigit(str[0]))
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return -1;
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num = atoi(str);
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for (++str; isdigit(*str); ++str);
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switch (tolower(*str)) {
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case '\0':
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case 'b' : return num; /* bytes */
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case 'k': return num * 1000; /* kilobyte */
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case 'm': return num * 1000 * 1000; /* megabyte */
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default:
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return -1;
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}
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}
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char*
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mu_str_from_list (const GSList *lst, char sepa)
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{
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const GSList *cur;
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char *str;
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g_return_val_if_fail (sepa, NULL);
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for (cur = lst, str = NULL; cur; cur = g_slist_next(cur)) {
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char *tmp;
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/* two extra dummy '\0' so -Wstack-protector won't complain */
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char sep[4] = { '\0', '\0', '\0', '\0' };
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sep[0] = cur->next ? sepa : '\0';
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tmp = g_strdup_printf ("%s%s%s",
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str ? str : "",
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(gchar*)cur->data,
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sep);
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g_free (str);
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str = tmp;
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}
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return str;
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}
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GSList*
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mu_str_to_list (const char *str, char sepa, gboolean strip)
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{
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GSList *lst;
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gchar **strs, **cur;
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/* two extra dummy '\0' so -Wstack-protector won't complain */
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char sep[4] = { '\0', '\0', '\0', '\0' };
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g_return_val_if_fail (sepa, NULL);
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if (!str)
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return NULL;
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sep[0] = sepa;
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strs = g_strsplit (str, sep, -1);
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for (cur = strs, lst = NULL; cur && *cur; ++cur) {
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char *elm;
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elm = g_strdup(*cur);
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if (strip)
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elm = g_strstrip (elm);
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lst = g_slist_prepend (lst, elm);
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}
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lst = g_slist_reverse (lst);
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g_strfreev (strs);
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return lst;
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}
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static gchar*
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eat_esc_string (char **strlst)
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{
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char *str;
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gboolean quoted;
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GString *gstr;
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str = g_strchug (*strlst);
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gstr = g_string_sized_new (strlen(str));
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for (quoted = FALSE; *str; ++str) {
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if (*str == '"') {
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quoted = !quoted;
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continue;
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} else if (quoted)
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gstr = g_string_append_c (gstr, *str);
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else if (*str == '\\') {
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if (str[1] != ' ' && str[1] != '"' && str[1] != '\\')
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goto err; /* invalid escaping */
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g_string_append_c (gstr, *(str++));
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continue;
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} else if (*str == ' ') {
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++str;
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goto leave;
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} else
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g_string_append_c (gstr, *str);
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}
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leave:
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*strlst = str;
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return g_string_free (gstr, FALSE);
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err:
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g_warning ("error in string");
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*strlst = NULL;
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return g_string_free (gstr, TRUE);
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}
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GSList*
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mu_str_esc_to_list (const char *strings)
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{
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GSList *lst;
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char *str, *mystrings, *freeme;
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g_return_val_if_fail (strings, NULL);
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freeme = mystrings = g_strdup (strings);
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mystrings = g_strdup(g_strchug(mystrings));
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lst = NULL;
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do {
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str = eat_esc_string (&mystrings);
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if (str)
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lst = g_slist_prepend (lst, str);
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} while (mystrings && *mystrings);
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g_free (freeme);
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return g_slist_reverse (lst);
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}
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void
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mu_str_free_list (GSList *lst)
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{
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g_slist_foreach (lst, (GFunc)g_free, NULL);
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g_slist_free (lst);
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}
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const gchar*
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mu_str_subject_normalize (const gchar* str)
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{
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gchar *last_colon;
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g_return_val_if_fail (str, NULL);
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last_colon = g_strrstr (str, ":");
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if (!last_colon)
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return str;
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else {
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gchar *str;
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str = last_colon + 1;
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while (*str == ' ')
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++str;
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return str;
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}
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}
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/*
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* Xapian treats various characters such as '@', '-', ':' and '.'
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* specially; function below is an ugly hack to make it DWIM in most
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* cases...*/
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char*
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mu_str_ascii_xapian_escape_in_place (char *query)
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{
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gchar *cur;
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gboolean replace_dot;
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g_return_val_if_fail (query, NULL);
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/* only replace the '.' if the string looks like an e-mail
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* address or msg-id */
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replace_dot = (g_strstr_len(query, -1, "@") != NULL);
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for (cur = query; *cur; ++cur) {
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*cur = tolower(*cur);
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switch (*cur) {
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case '@':
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case '-':
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*cur = '_'; break;
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case '.': {
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/* don't replace a final cur */
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if (cur[1]== ' ' || cur[1]=='\t' || cur[1]== '.')
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++cur;
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else if (cur[1] == '\0')
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break;
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else
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*cur = '_';
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break;
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}
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case ':':
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/* if there's a registered xapian prefix before the
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* ':', don't touch it. Otherwise replace ':' with
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* a space'... ugh yuck ugly...
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*/
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if (!is_xapian_prefix (query, cur))
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*cur = '_';
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break;
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}
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}
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return query;
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}
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char*
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mu_str_ascii_xapian_escape (const char *query)
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{
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g_return_val_if_fail (query, NULL);
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return mu_str_ascii_xapian_escape_in_place (g_strdup(query));
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}
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/* note: this function is *not* re-entrant, it returns a static buffer */
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const char*
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mu_str_fullpath_s (const char* path, const char* name)
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{
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static char buf[PATH_MAX + 1];
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g_return_val_if_fail (path, NULL);
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snprintf (buf, sizeof(buf), "%s%c%s", path, G_DIR_SEPARATOR,
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name ? name : "");
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return buf;
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}
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char*
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mu_str_escape_c_literal (const gchar* str, gboolean in_quotes)
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{
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const char* cur;
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GString *tmp;
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g_return_val_if_fail (str, NULL);
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tmp = g_string_sized_new (2 * strlen(str));
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if (in_quotes)
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g_string_append_c (tmp, '"');
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for (cur = str; *cur; ++cur)
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switch (*cur) {
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case '\\': tmp = g_string_append (tmp, "\\\\"); break;
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case '"': tmp = g_string_append (tmp, "\\\""); break;
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default: tmp = g_string_append_c (tmp, *cur);
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}
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if (in_quotes)
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g_string_append_c (tmp, '"');
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return g_string_free (tmp, FALSE);
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}
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/* turn \0-terminated buf into ascii (which is a utf8 subset); convert
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* any non-ascii into '.'
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*/
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char*
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mu_str_asciify_in_place (char *buf)
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{
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char *c;
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for (c = buf; c && *c; ++c)
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if (!isascii(*c))
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c[0] = '.';
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return buf;
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}
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gchar*
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mu_str_convert_to_utf8 (const char* buffer, const char *charset)
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{
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GError *err;
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gchar * utf8;
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g_return_val_if_fail (buffer, NULL);
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g_return_val_if_fail (charset, NULL );
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err = NULL;
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utf8 = g_convert_with_fallback (buffer, -1, "UTF-8",
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charset, NULL,
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NULL, NULL, &err);
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if (!utf8) {
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g_debug ("%s: conversion failed from %s: %s",
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__FUNCTION__, charset, err ? err->message : "");
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if (err)
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g_error_free (err);
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}
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return utf8;
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}
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gchar*
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mu_str_guess_last_name (const char *name)
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{
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const gchar *lastsp;
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if (!name)
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return g_strdup ("");
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lastsp = g_strrstr (name, " ");
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return g_strdup (lastsp ? lastsp + 1 : "");
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}
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gchar*
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mu_str_guess_first_name (const char *name)
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{
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|
const gchar *lastsp;
|
|
|
|
if (!name)
|
|
return g_strdup ("");
|
|
|
|
lastsp = g_strrstr (name, " ");
|
|
|
|
if (lastsp)
|
|
return g_strndup (name, lastsp - name);
|
|
else
|
|
return g_strdup (name);
|
|
}
|
|
|
|
static gchar*
|
|
cleanup_str (const char* str)
|
|
{
|
|
gchar *s;
|
|
const gchar *cur;
|
|
unsigned i;
|
|
|
|
if (mu_str_is_empty(str))
|
|
return g_strdup ("");
|
|
|
|
s = g_new0 (char, strlen(str) + 1);
|
|
|
|
for (cur = str, i = 0; *cur; ++cur) {
|
|
if (ispunct(*cur) || isspace(*cur))
|
|
continue;
|
|
else
|
|
s[i++] = *cur;
|
|
}
|
|
|
|
return s;
|
|
}
|
|
|
|
|
|
gchar*
|
|
mu_str_guess_nick (const char* name)
|
|
{
|
|
gchar *fname, *lname, *nick;
|
|
gchar initial[7];
|
|
|
|
fname = mu_str_guess_first_name (name);
|
|
lname = mu_str_guess_last_name (name);
|
|
|
|
/* if there's no last name, use first name as the nick */
|
|
if (mu_str_is_empty(fname) || mu_str_is_empty(lname)) {
|
|
g_free (lname);
|
|
nick = fname;
|
|
goto leave;
|
|
}
|
|
|
|
memset (initial, 0, sizeof(initial));
|
|
/* couldn't we get an initial for the last name? */
|
|
if (g_unichar_to_utf8 (g_utf8_get_char (lname), initial) == 0) {
|
|
g_free (lname);
|
|
nick = fname;
|
|
goto leave;
|
|
}
|
|
|
|
nick = g_strdup_printf ("%s%s", fname, initial);
|
|
g_free (fname);
|
|
g_free (lname);
|
|
|
|
leave:
|
|
{
|
|
gchar *tmp;
|
|
tmp = cleanup_str (nick);
|
|
g_free (nick);
|
|
nick = tmp;
|
|
}
|
|
|
|
return nick;
|
|
}
|