parse text/enriched messages.
authorMelvin Hadasht <melvin.hadasht@free.fr>
Wed, 28 Nov 2001 22:49:48 +0000 (22:49 +0000)
committerMelvin Hadasht <melvin.hadasht@free.fr>
Wed, 28 Nov 2001 22:49:48 +0000 (22:49 +0000)
Only <nofill> is supported. <param>eters are ignored.

src/enriched.c [new file with mode: 0644]
src/enriched.h [new file with mode: 0644]

diff --git a/src/enriched.c b/src/enriched.c
new file mode 100644 (file)
index 0000000..e387ee5
--- /dev/null
@@ -0,0 +1,249 @@
+/*
+ * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
+ * Copyright (C) 1999,2000 Hiroyuki Yamamoto
+ *
+ * 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 <glib.h>
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+
+#include "enriched.h"
+#include "codeconv.h"
+#include "utils.h"
+
+#define ERTFBUFSIZE    8192
+
+
+static ERTFState ertf_read_line                (ERTFParser     *parser);
+static void ertf_append_char           (ERTFParser     *parser,
+                                        gchar           ch);
+static void ertf_append_str            (ERTFParser     *parser,
+                                        const gchar    *str,
+                                        gint            len);
+
+static ERTFState ertf_parse_tag                (ERTFParser     *parser);
+static void ertf_get_parenthesis       (ERTFParser     *parser, 
+                                        gchar          *buf, 
+                                        gint            len);
+
+ERTFParser *ertf_parser_new(FILE *fp, CodeConverter *conv)
+{
+       ERTFParser *parser;
+
+       g_return_val_if_fail(fp   != NULL, NULL);
+       g_return_val_if_fail(conv != NULL, NULL);
+
+       parser             = g_new0(ERTFParser, 1);
+       parser->fp         = fp;
+       parser->conv       = conv;
+       parser->str        = g_string_new(NULL);
+       parser->buf        = g_string_new(NULL);
+       parser->bufp       = parser->buf->str;
+       parser->newline    = TRUE;
+       parser->empty_line = TRUE;
+       parser->space      = FALSE;
+       parser->pre        = FALSE;
+
+       return parser;
+}
+
+void ertf_parser_destroy(ERTFParser *parser)
+{
+       g_string_free(parser->str, TRUE);
+       g_string_free(parser->buf, TRUE);
+       g_free(parser);
+}
+
+gchar *ertf_parse(ERTFParser *parser)
+{
+       parser->state = ERTF_NORMAL;
+       g_string_truncate(parser->str, 0);
+
+       if (*parser->bufp == '\0') {
+               g_string_truncate(parser->buf, 0);
+               parser->bufp = parser->buf->str;
+               if (ertf_read_line(parser) == ERTF_EOF)
+                       return NULL;
+       }
+       
+       while (*parser->bufp != '\0') {
+               switch (*parser->bufp) {
+                       case '<':
+                               if (parser->str->len == 0)
+                                       ertf_parse_tag(parser);
+                               else
+                                       return parser->str->str;
+                               break;
+                       case '\n':
+                       case '\r':      
+                               if (parser->bufp[0] == '\r' && parser->bufp[1] == '\n') 
+                                               parser->bufp++;
+
+                               if (!parser->pre) {
+                                       /* When not pre (not <nofill>), 1 CRLF = SPACE, N>1 CRLF = N-1 CRLF*/
+                                       if (!parser->newline) {
+                                               parser->newline = TRUE;
+                                               parser->space = TRUE;
+                                       parser->bufp++;
+                                       break;
+                                       }
+
+                               }
+                       default:
+                               ertf_append_char(parser, *parser->bufp++);
+               }
+       }
+       
+       return parser->str->str;
+}
+
+static ERTFState ertf_read_line(ERTFParser *parser)
+{
+       gchar buf[ERTFBUFSIZE];
+       gchar buf2[ERTFBUFSIZE];
+       gint index;
+
+       if (fgets(buf, sizeof(buf), parser->fp) == NULL) {
+               parser->state = ERTF_EOF;
+               return ERTF_EOF;
+       }
+
+       if (conv_convert(parser->conv, buf2, sizeof(buf2), buf) < 0) {
+               g_warning("ertf_read_line(): code conversion failed\n");
+
+               index = parser->bufp - parser->buf->str;
+
+               g_string_append(parser->buf, buf);
+
+               parser->bufp = parser->buf->str + index;
+
+               return ERTF_ERR;
+       }
+
+       index = parser->bufp - parser->buf->str;
+
+       g_string_append(parser->buf, buf2);
+
+       parser->bufp = parser->buf->str + index;
+
+       return ERTF_NORMAL;
+}
+
+static void ertf_append_char(ERTFParser *parser, gchar ch)
+{
+       GString *str = parser->str;
+
+       if (!parser->pre && parser->space) {
+               if (ch != '\n')
+                       g_string_append_c(str, ' ');
+               parser->space = FALSE;
+       }
+
+       g_string_append_c(str, ch);
+
+       parser->empty_line = FALSE;
+       if (ch == '\n') {
+               if (parser->newline)
+                       parser->empty_line = TRUE;
+               else
+                       parser->newline = TRUE;
+       } else
+               parser->newline = FALSE;
+}
+
+static void ertf_append_str(ERTFParser *parser, const gchar *str, gint len)
+{
+       GString *string = parser->str;
+
+       if (!parser->pre && parser->space) {
+               g_string_append_c(string, ' ');
+               parser->space = FALSE;
+       }
+
+       if (len == 0) return;
+       if (len < 0)
+               g_string_append(string, str);
+       else {
+               gchar *s;
+               Xstrndup_a(s, str, len, return);
+               g_string_append(string, s);
+       }
+
+       parser->empty_line = FALSE;
+       if (string->len > 0 && string->str[string->len - 1] == '\n') {
+               parser->newline = TRUE;
+               if (string->len > 1 && string->str[string->len - 2] == '\n')
+                       parser->empty_line = TRUE;
+       } else
+               parser->newline = FALSE;
+}
+
+static ERTFState ertf_parse_tag(ERTFParser *parser)
+{
+       gchar buf[ERTFBUFSIZE];
+       gchar *p;
+       
+       ertf_get_parenthesis (parser, buf, sizeof(buf));
+       
+       for (p = buf; *p != '\0'; p++) {
+               if (isspace (*p)) {
+                       *p = '\0';
+                       break;
+               }
+       }
+
+       parser->state = ERTF_UNKNOWN;
+       if (buf[0] == '\0') return parser->state;
+
+       g_strdown (buf);
+
+       if (!strcmp(buf, "nofill")) {
+               parser->pre   = TRUE;
+               parser->state = ERTF_NOFILL;
+       }
+       else if (!strcmp(buf, "/nofill")) {
+               parser->pre   = FALSE;
+               parser->state = ERTF_NORMAL;
+       }
+       
+       return parser->state;
+}
+               
+static void ertf_get_parenthesis(ERTFParser *parser, gchar *buf, gint len)
+{
+       gchar *p;
+
+       buf[0] = '\0';
+       g_return_if_fail(*parser->bufp == '<');
+
+       /* ignore params */
+       if (!g_strncasecmp(parser->bufp, "<param>", 4)) {
+               parser->bufp += 7;
+               while ((p = strstr(parser->bufp, "</param>")) == NULL)
+                       if (ertf_read_line(parser) == ERTF_EOF) return;
+               parser->bufp = p + 8;
+               return;
+       }
+       parser->bufp++;
+       while ((p = strchr(parser->bufp, '>')) == NULL)
+               if (ertf_read_line(parser) == ERTF_EOF) return;
+
+       strncpy2(buf, parser->bufp, MIN(p - parser->bufp + 1, len));
+       parser->bufp = p + 1;
+}
+
diff --git a/src/enriched.h b/src/enriched.h
new file mode 100644 (file)
index 0000000..651d114
--- /dev/null
@@ -0,0 +1,67 @@
+/*
+ * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
+ * Copyright (C) 1999,2000 Hiroyuki Yamamoto
+ *
+ * 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.
+ */
+
+#ifndef __ERTF_H__
+#define __ERTF_H__
+
+#include <glib.h>
+#include <stdio.h>
+
+#include "codeconv.h"
+
+typedef enum
+{
+       ERTF_NORMAL,
+       ERTF_NOFILL,
+       ERTF_UNKNOWN,
+       ERTF_ERR,
+       ERTF_EOF
+} ERTFState;
+
+typedef struct _ERTFParser     ERTFParser;
+
+struct _ERTFParser
+{
+       FILE *fp;
+       CodeConverter *conv;
+
+       GHashTable *symbol_table;
+
+       GString *str;
+       GString *buf;
+       
+       gchar *bufp;
+
+       ERTFState state;
+
+       gboolean newline;
+       gboolean empty_line;
+       gboolean space;
+       gboolean pre;
+};
+
+ERTFParser *ertf_parser_new    (FILE           *fp,
+                                CodeConverter  *conv);
+void ertf_parser_destroy       (ERTFParser     *parser);
+gchar *ertf_parse              (ERTFParser     *parser);
+
+#endif /* __ERTF_H__ */
+                                
+       
+