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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 16:23:22 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 16:23:22 +0000
commite42129241681dde7adae7d20697e7b421682fbb4 (patch)
treeaf1fe815a5e639e68e59fabd8395ec69458b3e5e /plug-ins/common/file-glob.c
parentInitial commit. (diff)
downloadgimp-e42129241681dde7adae7d20697e7b421682fbb4.tar.xz
gimp-e42129241681dde7adae7d20697e7b421682fbb4.zip
Adding upstream version 2.10.22.upstream/2.10.22upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'plug-ins/common/file-glob.c')
-rw-r--r--plug-ins/common/file-glob.c450
1 files changed, 450 insertions, 0 deletions
diff --git a/plug-ins/common/file-glob.c b/plug-ins/common/file-glob.c
new file mode 100644
index 0000000..6ce0e00
--- /dev/null
+++ b/plug-ins/common/file-glob.c
@@ -0,0 +1,450 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * 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 3 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, see <https://www.gnu.org/licenses/>.
+ */
+
+/* The idea is taken from a plug-in written by George Hartz; the code isn't.
+ */
+
+#include "config.h"
+
+#include <string.h>
+
+#include "libgimp/gimp.h"
+
+
+#define PLUG_IN_PROC "file-glob"
+
+
+static void query (void);
+static void run (const gchar *name,
+ gint nparams,
+ const GimpParam *param,
+ gint *nreturn_vals,
+ GimpParam **return_vals);
+
+static gboolean glob_match (const gchar *pattern,
+ gboolean filename_encoding,
+ gint *num_matches,
+ gchar ***matches);
+static gboolean glob_fnmatch (const gchar *pattern,
+ const gchar *string);
+
+
+const GimpPlugInInfo PLUG_IN_INFO =
+{
+ NULL,
+ NULL,
+ query,
+ run,
+};
+
+MAIN ()
+
+static void
+query (void)
+{
+ static const GimpParamDef glob_args[] =
+ {
+ { GIMP_PDB_STRING, "pattern" , "The glob pattern (in UTF-8 encoding)" },
+ { GIMP_PDB_INT32, "encoding", "Encoding of the returned names: "
+ "{ UTF-8 (0), filename encoding (1) }" }
+ };
+
+ static const GimpParamDef glob_return_vals[] =
+ {
+ { GIMP_PDB_INT32, "num-files", "The number of returned names" },
+ { GIMP_PDB_STRINGARRAY, "files", "The list of matching names" }
+ };
+
+
+ gimp_install_procedure (PLUG_IN_PROC,
+ "Returns a list of matching filenames",
+ "This can be useful in scripts and other plug-ins "
+ "(e.g., batch-conversion). See the glob(7) manpage "
+ "for more info. Note however that this isn't a "
+ "full-featured glob implementation. It only handles "
+ "simple patterns like \"/home/foo/bar/*.jpg\".",
+ "Sven Neumann",
+ "Sven Neumann",
+ "2004",
+ NULL,
+ NULL,
+ GIMP_PLUGIN,
+ G_N_ELEMENTS (glob_args),
+ G_N_ELEMENTS (glob_return_vals),
+ glob_args,
+ glob_return_vals);
+}
+
+static void
+run (const gchar *name,
+ gint nparams,
+ const GimpParam *param,
+ gint *nreturn_vals,
+ GimpParam **return_vals)
+{
+ static GimpParam values[3];
+
+ *nreturn_vals = 1;
+ *return_vals = values;
+
+ values[0].type = GIMP_PDB_STATUS;
+ values[0].data.d_status = GIMP_PDB_CALLING_ERROR;
+
+ if (strcmp (name, PLUG_IN_PROC) == 0 && nparams >= 1)
+ {
+ gchar **matches;
+ gint num_matches;
+ gboolean filename_encoding = FALSE;
+
+ if (nparams > 1)
+ filename_encoding = param[0].data.d_int32 ? TRUE : FALSE;
+
+ if (! glob_match (param[0].data.d_string, filename_encoding,
+ &num_matches, &matches))
+ {
+ values[0].data.d_status = GIMP_PDB_EXECUTION_ERROR;
+ return;
+ }
+
+ *nreturn_vals = 3;
+
+ values[0].type = GIMP_PDB_STATUS;
+ values[0].data.d_status = GIMP_PDB_SUCCESS;
+
+ values[1].type = GIMP_PDB_INT32;
+ values[1].data.d_int32 = num_matches;
+
+ values[2].type = GIMP_PDB_STRINGARRAY;
+ values[2].data.d_stringarray = matches;
+ }
+}
+
+static gboolean
+glob_match (const gchar *pattern,
+ gboolean filename_encoding,
+ gint *num_matches,
+ gchar ***matches)
+{
+ GDir *dir;
+ GPtrArray *array;
+ const gchar *filename;
+ gchar *dirname;
+ gchar *tmp;
+
+ g_return_val_if_fail (pattern != NULL, FALSE);
+ g_return_val_if_fail (num_matches != NULL, FALSE);
+ g_return_val_if_fail (matches != NULL, FALSE);
+
+ *num_matches = 0;
+ *matches = NULL;
+
+ /* This is not a complete glob() implementation but rather a very
+ * simplistic approach. However it works for the most common use
+ * case and is better than nothing.
+ */
+
+ tmp = g_filename_from_utf8 (pattern, -1, NULL, NULL, NULL);
+ if (! tmp)
+ return FALSE;
+
+ dirname = g_path_get_dirname (tmp);
+
+ dir = g_dir_open (dirname, 0, NULL);
+ g_free (tmp);
+
+ if (! dir)
+ {
+ g_free (dirname);
+ return TRUE;
+ }
+
+ /* check if the pattern has a directory part at all */
+ tmp = g_path_get_basename (pattern);
+ if (strcmp (pattern, tmp) == 0)
+ {
+ g_free (dirname);
+ dirname = NULL;
+ }
+ g_free (tmp);
+
+ array = g_ptr_array_new ();
+
+ for (filename = g_dir_read_name (dir);
+ filename;
+ filename = g_dir_read_name (dir))
+ {
+ gchar *path;
+ gchar *name;
+
+ if (dirname)
+ path = g_build_filename (dirname, filename, NULL);
+ else
+ path = g_strdup (filename);
+
+ name = g_filename_to_utf8 (path, -1, NULL, NULL, NULL);
+
+ if (name && glob_fnmatch (pattern, name))
+ {
+ if (filename_encoding)
+ {
+ g_ptr_array_add (array, path);
+ path = NULL;
+ }
+ else
+ {
+ g_ptr_array_add (array, name);
+ name = NULL;
+ }
+ }
+
+ g_free (path);
+ g_free (name);
+ }
+
+ g_dir_close (dir);
+ g_free (dirname);
+
+ *num_matches = array->len;
+ *matches = (gchar **) g_ptr_array_free (array, FALSE);
+
+ return TRUE;
+}
+
+
+/*
+ * The following code is borrowed from GTK+.
+ *
+ * GTK+ used to use a old version of GNU fnmatch() that was buggy
+ * in various ways and didn't handle UTF-8. The following is
+ * converted to UTF-8. To simplify the process of making it
+ * correct, this is special-cased to the combinations of flags
+ * that gtkfilesel.c uses.
+ *
+ * FNM_FILE_NAME - always set
+ * FNM_LEADING_DIR - never set
+ * FNM_NOESCAPE - set only on windows
+ * FNM_CASEFOLD - set only on windows
+ */
+
+/* We need to make sure that all constants are defined
+ * to properly compile this file
+ */
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+
+static gunichar
+get_char (const char **str)
+{
+ gunichar c = g_utf8_get_char (*str);
+ *str = g_utf8_next_char (*str);
+
+#ifdef G_PLATFORM_WIN32
+ c = g_unichar_tolower (c);
+#endif
+
+ return c;
+}
+
+#if defined(G_OS_WIN32) || defined(G_WITH_CYGWIN)
+#define DO_ESCAPE 0
+#else
+#define DO_ESCAPE 1
+#endif
+
+static gunichar
+get_unescaped_char (const char **str,
+ gboolean *was_escaped)
+{
+ gunichar c = get_char (str);
+
+ *was_escaped = DO_ESCAPE && c == '\\';
+ if (*was_escaped)
+ c = get_char (str);
+
+ return c;
+}
+
+/* Match STRING against the filename pattern PATTERN,
+ * returning TRUE if it matches, FALSE otherwise.
+ */
+static gboolean
+fnmatch_intern (const gchar *pattern,
+ const gchar *string,
+ gboolean component_start,
+ gboolean no_leading_period)
+{
+ const char *p = pattern, *n = string;
+
+ while (*p)
+ {
+ const char *last_n = n;
+
+ gunichar c = get_char (&p);
+ gunichar nc = get_char (&n);
+
+ switch (c)
+ {
+ case '?':
+ if (nc == '\0')
+ return FALSE;
+ else if (nc == G_DIR_SEPARATOR)
+ return FALSE;
+ else if (nc == '.' && component_start && no_leading_period)
+ return FALSE;
+ break;
+ case '\\':
+ if (DO_ESCAPE)
+ c = get_char (&p);
+ if (nc != c)
+ return FALSE;
+ break;
+ case '*':
+ if (nc == '.' && component_start && no_leading_period)
+ return FALSE;
+
+ {
+ const char *last_p = p;
+
+ for (last_p = p, c = get_char (&p);
+ c == '?' || c == '*';
+ last_p = p, c = get_char (&p))
+ {
+ if (c == '?')
+ {
+ if (nc == '\0')
+ return FALSE;
+ else if (nc == G_DIR_SEPARATOR)
+ return FALSE;
+ else
+ {
+ last_n = n; nc = get_char (&n);
+ }
+ }
+ }
+
+ /* If the pattern ends with wildcards, we have a
+ * guaranteed match unless there is a dir separator
+ * in the remainder of the string.
+ */
+ if (c == '\0')
+ {
+ if (strchr (last_n, G_DIR_SEPARATOR) != NULL)
+ return FALSE;
+ else
+ return TRUE;
+ }
+
+ if (DO_ESCAPE && c == '\\')
+ c = get_char (&p);
+
+ for (p = last_p; nc != '\0';)
+ {
+ if ((c == '[' || nc == c) &&
+ fnmatch_intern (p, last_n,
+ component_start, no_leading_period))
+ return TRUE;
+
+ component_start = (nc == G_DIR_SEPARATOR);
+ last_n = n;
+ nc = get_char (&n);
+ }
+
+ return FALSE;
+ }
+
+ case '[':
+ {
+ /* Nonzero if the sense of the character class is inverted. */
+ gboolean not;
+ gboolean was_escaped;
+
+ if (nc == '\0' || nc == G_DIR_SEPARATOR)
+ return FALSE;
+
+ if (nc == '.' && component_start && no_leading_period)
+ return FALSE;
+
+ not = (*p == '!' || *p == '^');
+ if (not)
+ ++p;
+
+ c = get_unescaped_char (&p, &was_escaped);
+ for (;;)
+ {
+ register gunichar cstart = c, cend = c;
+ if (c == '\0')
+ /* [ (unterminated) loses. */
+ return FALSE;
+
+ c = get_unescaped_char (&p, &was_escaped);
+
+ if (!was_escaped && c == '-' && *p != ']')
+ {
+ cend = get_unescaped_char (&p, &was_escaped);
+ if (cend == '\0')
+ return FALSE;
+
+ c = get_char (&p);
+ }
+
+ if (nc >= cstart && nc <= cend)
+ goto matched;
+
+ if (!was_escaped && c == ']')
+ break;
+ }
+ if (!not)
+ return FALSE;
+ break;
+
+ matched:;
+ /* Skip the rest of the [...] that already matched. */
+ /* XXX 1003.2d11 is unclear if was_escaped is right. */
+ while (was_escaped || c != ']')
+ {
+ if (c == '\0')
+ /* [... (unterminated) loses. */
+ return FALSE;
+
+ c = get_unescaped_char (&p, &was_escaped);
+ }
+ if (not)
+ return FALSE;
+ }
+ break;
+
+ default:
+ if (c != nc)
+ return FALSE;
+ }
+
+ component_start = (nc == G_DIR_SEPARATOR);
+ }
+
+ if (*n == '\0')
+ return TRUE;
+
+ return FALSE;
+}
+
+static gboolean
+glob_fnmatch (const gchar *pattern,
+ const gchar *string)
+{
+ return fnmatch_intern (pattern, string, TRUE, TRUE);
+}