filename | src/lxpaths.c |
changeset | 1286:8376a612a79d |
prev | 1283:2cbafe321d6f |
next | 1296:30ecee61f811 |
author | nkeynes |
date | Fri Aug 24 08:53:50 2012 +1000 (11 years ago) |
permissions | -rw-r--r-- |
last change | Move the generated prologue/epilogue code out into a common entry stub (reduces space requirements) and pre-save all saved registers. Change FASTCALL to use 3 regs instead of 2 since we can now keep everything in regs. |
file | annotate | diff | log | raw |
nkeynes@1041 | 1 | /** |
nkeynes@1041 | 2 | * $Id$ |
nkeynes@1041 | 3 | * |
nkeynes@1041 | 4 | * GUI helper functions that aren't specific to any particular implementation. |
nkeynes@1041 | 5 | * |
nkeynes@1041 | 6 | * Copyright (c) 2009 Nathan Keynes. |
nkeynes@1041 | 7 | * |
nkeynes@1041 | 8 | * This program is free software; you can redistribute it and/or modify |
nkeynes@1041 | 9 | * it under the terms of the GNU General Public License as published by |
nkeynes@1041 | 10 | * the Free Software Foundation; either version 2 of the License, or |
nkeynes@1041 | 11 | * (at your option) any later version. |
nkeynes@1041 | 12 | * |
nkeynes@1041 | 13 | * This program is distributed in the hope that it will be useful, |
nkeynes@1041 | 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
nkeynes@1041 | 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
nkeynes@1041 | 16 | * GNU General Public License for more details. |
nkeynes@1041 | 17 | */ |
nkeynes@1041 | 18 | |
nkeynes@1041 | 19 | #include <ctype.h> |
nkeynes@1041 | 20 | #include <unistd.h> |
nkeynes@1205 | 21 | #include <stdlib.h> |
nkeynes@1286 | 22 | #include <glib/gfileutils.h> |
nkeynes@1041 | 23 | #include <glib/gstrfuncs.h> |
nkeynes@1041 | 24 | #include <glib/gutils.h> |
nkeynes@1041 | 25 | |
nkeynes@1041 | 26 | #include "gui.h" |
nkeynes@1041 | 27 | #include "config.h" |
nkeynes@1041 | 28 | |
nkeynes@1041 | 29 | static gchar *gui_paths[CONFIG_KEY_MAX]; |
nkeynes@1041 | 30 | |
nkeynes@1041 | 31 | /** |
nkeynes@1041 | 32 | * Test if we need to escape a path to prevent substitution mangling. |
nkeynes@1041 | 33 | * @return TRUE if the input value contains any character that doesn't |
nkeynes@1041 | 34 | * match [a-zA-Z0-9._@%/] (this will escape slightly more than it needs to, |
nkeynes@1041 | 35 | * but is safe) |
nkeynes@1041 | 36 | */ |
nkeynes@1041 | 37 | static gboolean path_needs_escaping( const gchar *value ) |
nkeynes@1041 | 38 | { |
nkeynes@1041 | 39 | const gchar *p = value; |
nkeynes@1041 | 40 | while( *p ) { |
nkeynes@1041 | 41 | if( !isalnum(*p) && *p != '.' && *p != '_' && |
nkeynes@1041 | 42 | *p != '@' && *p != '%' && *p != '/' ) { |
nkeynes@1041 | 43 | return TRUE; |
nkeynes@1041 | 44 | } |
nkeynes@1041 | 45 | p++; |
nkeynes@1041 | 46 | } |
nkeynes@1041 | 47 | return FALSE; |
nkeynes@1041 | 48 | } |
nkeynes@1041 | 49 | |
nkeynes@1041 | 50 | gchar *get_escaped_path( const gchar *value ) |
nkeynes@1041 | 51 | { |
nkeynes@1041 | 52 | if( value != NULL && path_needs_escaping(value) ) { |
nkeynes@1041 | 53 | /* Escape with "", and backslash the remaining characters: |
nkeynes@1041 | 54 | * \ " $ ` |
nkeynes@1041 | 55 | */ |
nkeynes@1041 | 56 | char buf[strlen(value)*2+3]; |
nkeynes@1041 | 57 | const char *s = value; |
nkeynes@1041 | 58 | char *p = buf; |
nkeynes@1041 | 59 | *p++ = '\"'; |
nkeynes@1041 | 60 | while( *s ) { |
nkeynes@1041 | 61 | if( *s == '\\' || *s == '"' || *s == '$' || *s == '`' ) { |
nkeynes@1041 | 62 | *p++ = '\\'; |
nkeynes@1041 | 63 | } |
nkeynes@1041 | 64 | *p++ = *s++; |
nkeynes@1041 | 65 | } |
nkeynes@1041 | 66 | *p++ = '\"'; |
nkeynes@1041 | 67 | *p = '\0'; |
nkeynes@1041 | 68 | return g_strdup(buf); |
nkeynes@1041 | 69 | } else { |
nkeynes@1041 | 70 | return g_strdup(value); |
nkeynes@1041 | 71 | } |
nkeynes@1041 | 72 | } |
nkeynes@1041 | 73 | |
nkeynes@1041 | 74 | gchar *get_expanded_path( const gchar *input ) |
nkeynes@1041 | 75 | { |
nkeynes@1205 | 76 | char result[PATH_MAX]; |
nkeynes@1205 | 77 | |
nkeynes@1205 | 78 | char *d, *e; |
nkeynes@1205 | 79 | const char *s; |
nkeynes@1205 | 80 | d = result; |
nkeynes@1205 | 81 | e = result+sizeof(result)-1; |
nkeynes@1205 | 82 | s = input; |
nkeynes@1283 | 83 | gboolean inDQstring = FALSE; |
nkeynes@1205 | 84 | |
nkeynes@1205 | 85 | if( input == NULL ) |
nkeynes@1041 | 86 | return NULL; |
nkeynes@1205 | 87 | |
nkeynes@1205 | 88 | while( *s ) { |
nkeynes@1205 | 89 | if( d == e ) { |
nkeynes@1205 | 90 | return g_strdup(input); /* expansion too long */ |
nkeynes@1205 | 91 | } |
nkeynes@1205 | 92 | char c = *s++; |
nkeynes@1205 | 93 | if( c == '$' ) { |
nkeynes@1205 | 94 | if( *s == '{' ) { |
nkeynes@1205 | 95 | s++; |
nkeynes@1205 | 96 | const char *q = s; |
nkeynes@1205 | 97 | while( *q != '}' ) { |
nkeynes@1205 | 98 | if( ! *q ) { |
nkeynes@1205 | 99 | return g_strdup(input); /* unterminated variable */ |
nkeynes@1205 | 100 | } |
nkeynes@1205 | 101 | q++; |
nkeynes@1205 | 102 | } |
nkeynes@1205 | 103 | char *tmp = g_strndup(s, (q-s)); |
nkeynes@1205 | 104 | s = q+1; |
nkeynes@1205 | 105 | char *value = getenv(tmp); |
nkeynes@1205 | 106 | g_free(tmp); |
nkeynes@1205 | 107 | if( value != NULL ) { |
nkeynes@1205 | 108 | int len = strlen(value); |
nkeynes@1205 | 109 | if( d + len > e ) |
nkeynes@1205 | 110 | return g_strdup(input); |
nkeynes@1205 | 111 | strcpy(d, value); |
nkeynes@1205 | 112 | d+=len; |
nkeynes@1205 | 113 | } /* Else, empty string */ |
nkeynes@1205 | 114 | } else { |
nkeynes@1205 | 115 | const char *q = s; |
nkeynes@1205 | 116 | while( isalnum(*q) || *q == '_' ) { |
nkeynes@1205 | 117 | q++; |
nkeynes@1205 | 118 | } |
nkeynes@1205 | 119 | if( q == s ) { |
nkeynes@1205 | 120 | *d++ = '$'; |
nkeynes@1205 | 121 | } else { |
nkeynes@1205 | 122 | char *tmp = g_strndup(s,q-s); |
nkeynes@1205 | 123 | s = q; |
nkeynes@1205 | 124 | char *value = getenv(tmp); |
nkeynes@1205 | 125 | g_free(tmp); |
nkeynes@1205 | 126 | if( value != NULL ) { |
nkeynes@1205 | 127 | int len = strlen(value); |
nkeynes@1205 | 128 | if( d + len > e ) |
nkeynes@1205 | 129 | return g_strdup(input); |
nkeynes@1205 | 130 | strcpy(d, value); |
nkeynes@1205 | 131 | d += len; |
nkeynes@1205 | 132 | } |
nkeynes@1205 | 133 | } |
nkeynes@1205 | 134 | } |
nkeynes@1205 | 135 | } else if( c == '\\' ) { |
nkeynes@1205 | 136 | c = *s++; |
nkeynes@1205 | 137 | if( c ) { |
nkeynes@1205 | 138 | *d++ = c; |
nkeynes@1205 | 139 | } else { |
nkeynes@1205 | 140 | *d++ = '\\'; |
nkeynes@1205 | 141 | } |
nkeynes@1283 | 142 | } else if( c == '\"' ) { |
nkeynes@1283 | 143 | /* Unescaped double-quotes start a DQ string. Although we treat the |
nkeynes@1283 | 144 | * string as if it were double-quoted for most purposes anyway, so |
nkeynes@1283 | 145 | * this has little effect. |
nkeynes@1283 | 146 | */ |
nkeynes@1283 | 147 | inDQstring = !inDQstring; |
nkeynes@1205 | 148 | } else { |
nkeynes@1205 | 149 | *d++ = c; |
nkeynes@1205 | 150 | } |
nkeynes@1041 | 151 | } |
nkeynes@1205 | 152 | *d = '\0'; |
nkeynes@1283 | 153 | if( inDQstring ) { |
nkeynes@1283 | 154 | WARN( "Unterminated double-quoted string '%s'", input ); |
nkeynes@1283 | 155 | } |
nkeynes@1205 | 156 | return g_strdup(result); |
nkeynes@1041 | 157 | } |
nkeynes@1041 | 158 | gchar *get_absolute_path( const gchar *in_path ) |
nkeynes@1041 | 159 | { |
nkeynes@1041 | 160 | char tmp[PATH_MAX]; |
nkeynes@1041 | 161 | if( in_path == NULL ) { |
nkeynes@1041 | 162 | return NULL; |
nkeynes@1041 | 163 | } |
nkeynes@1041 | 164 | if( in_path[0] == '/' || in_path[0] == 0 ) { |
nkeynes@1041 | 165 | return g_strdup(in_path); |
nkeynes@1041 | 166 | } else { |
nkeynes@1041 | 167 | getcwd(tmp, sizeof(tmp)); |
nkeynes@1041 | 168 | return g_strdup_printf("%s%c%s", tmp, G_DIR_SEPARATOR, in_path); |
nkeynes@1041 | 169 | } |
nkeynes@1041 | 170 | } |
nkeynes@1041 | 171 | |
nkeynes@1041 | 172 | gchar *get_filename_at( const gchar *at, const gchar *filename ) |
nkeynes@1041 | 173 | { |
nkeynes@1041 | 174 | char tmp[PATH_MAX]; |
nkeynes@1056 | 175 | char *p = strrchr( at, '/' ); |
nkeynes@1041 | 176 | if( p == NULL ) { |
nkeynes@1041 | 177 | /* No path at all, so just return filename */ |
nkeynes@1041 | 178 | return g_strdup(filename); |
nkeynes@1041 | 179 | } else { |
nkeynes@1056 | 180 | int off = p-at; |
nkeynes@1041 | 181 | return g_strdup_printf("%.*s%c%s", off, at, G_DIR_SEPARATOR, filename ); |
nkeynes@1041 | 182 | } |
nkeynes@1041 | 183 | } |
nkeynes@1041 | 184 | |
nkeynes@1041 | 185 | const gchar *get_gui_path( int key ) |
nkeynes@1041 | 186 | { |
nkeynes@1041 | 187 | if( gui_paths[key] == NULL ) { |
nkeynes@1041 | 188 | gui_paths[key] = lxdream_get_global_config_path_value(key); |
nkeynes@1041 | 189 | /* If no path defined, go with the current working directory */ |
nkeynes@1041 | 190 | if( gui_paths[key] == NULL ) { |
nkeynes@1041 | 191 | gui_paths[key] = get_absolute_path("."); |
nkeynes@1041 | 192 | } |
nkeynes@1041 | 193 | } |
nkeynes@1041 | 194 | return gui_paths[key]; |
nkeynes@1041 | 195 | } |
nkeynes@1041 | 196 | |
nkeynes@1041 | 197 | void set_gui_path( int key, const gchar *path ) |
nkeynes@1041 | 198 | { |
nkeynes@1041 | 199 | g_free(gui_paths[key]); |
nkeynes@1041 | 200 | gui_paths[key] = g_strdup(path); |
nkeynes@1041 | 201 | } |
nkeynes@1041 | 202 | |
nkeynes@1041 | 203 | void reset_gui_paths() |
nkeynes@1041 | 204 | { |
nkeynes@1041 | 205 | int i; |
nkeynes@1041 | 206 | for( i=0; i < CONFIG_KEY_MAX; i++ ) { |
nkeynes@1041 | 207 | g_free(gui_paths[i]); |
nkeynes@1041 | 208 | gui_paths[i] = NULL; |
nkeynes@1041 | 209 | } |
nkeynes@1041 | 210 | } |
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