Merging dvipdfmx and xdvipdfmx (continue)

git-svn-id: svn://tug.org/texlive/trunk@31034 c570f23f-e606-0410-a88d-b1316a301751

1 files changed, 182 insertions, 0 deletions

diff --git a/Build/source/texk/dvipdfm-x/pst.c b/Build/source/texk/dvipdfm-x/pst.c
new file mode 100644
index 00000000000..fd3dab66678
--- /dev/null
+++ b/Build/source/texk/dvipdfm-x/pst.c
@@ -0,0 +1,182 @@
+/*  
+
+    This is dvipdfmx, an eXtended version of dvipdfm by Mark A. Wicks.
+
+    Copyright (C) 2002-2012 by Jin-Hwan Cho and Shunsaku Hirata,
+    the dvipdfmx project team.
+
+    Copyright (C) 1998, 1999 by Mark A. Wicks <mwicks@kettering.edu>
+
+    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 <string.h>
+#include <ctype.h>
+
+#include "system.h"
+#include "mem.h"
+#include "error.h"
+#include "dpxutil.h"
+#include "pst_obj.h"
+#include "pst.h"
+
+
+#define TYPE_CHECK(o, t) do { \
+                             if ((o) == NULL || pst_type_of((o)) != (t)) \
+                                  ERROR("typecheck: object %p not of type %d.", (o), (t)); \
+                             } while (0)
+
+static pst_obj *
+pst_parse_any (unsigned char **inbuf, unsigned char *inbufend)
+{
+  unsigned char *data;
+  unsigned char *cur = *inbuf;
+  unsigned long  len;
+
+  while (cur < inbufend && !PST_TOKEN_END(cur, inbufend))
+    cur++;
+
+  len = cur - (*inbuf);
+  data = NEW(len+1, unsigned char);
+  memcpy(data, *inbuf, len);
+  data[len] = '\0';
+
+  *inbuf = cur;
+  return pst_new_obj(PST_TYPE_UNKNOWN, data);
+}
+
+static void
+skip_line (unsigned char **inbuf, unsigned char *inbufend)
+{
+  while (*inbuf < inbufend && **inbuf != '\n' && **inbuf != '\r')
+    (*inbuf)++;
+  if (*inbuf < inbufend && **inbuf == '\r')
+    (*inbuf)++;
+  if (*inbuf < inbufend && **inbuf == '\n')
+    (*inbuf)++;
+}
+
+static void
+skip_comments (unsigned char **inbuf, unsigned char *inbufend)
+{
+  while (*inbuf < inbufend && **inbuf == '%') {
+    skip_line(inbuf, inbufend);
+    skip_white_spaces(inbuf, inbufend);
+  }
+}
+
+#if 0
+static pst_obj *
+pst_parse_comment (unsigned char **inbuf, unsigned char *inbufend)
+{
+  unsigned char *data;
+  unsigned char *cur = *inbuf;
+  unsigned long  len;
+
+  if (*cur != '%')
+    return NULL;
+  
+  while (cur < inbufend && *cur != '\n' && *cur != '\r')
+    cur++;
+  len = cur - (*inbuf);
+  data = NEW(len+1, unsigned char);
+  memcpy(data, *inbuf, len);
+  data[len] = '\0';
+     
+  *inbuf = cur;
+  return pst_new_obj(PST_TYPE_UNKNOWN, data);
+}
+#endif
+
+/* NOTE: the input buffer must be null-terminated, i.e., *inbufend == 0 */
+pst_obj *
+pst_get_token (unsigned char **inbuf, unsigned char *inbufend)
+{
+  pst_obj *obj = NULL;
+  unsigned char c;
+
+  ASSERT(*inbuf <= inbufend && !*inbufend);
+
+  skip_white_spaces(inbuf, inbufend);
+  skip_comments(inbuf, inbufend);
+  if (*inbuf >= inbufend)
+    return NULL;
+  c = **inbuf;
+  switch (c) {
+#if 0
+  case '%':
+    obj = pst_parse_comment(inbuf, inbufend);
+    break;
+#endif
+  case '/':
+    obj = pst_parse_name(inbuf, inbufend);
+    break;
+  case '[': case '{': /* This is wrong */
+    obj = pst_new_mark();
+    (*inbuf)++;
+    break;
+  case '<':
+    if (*inbuf + 1 >= inbufend)
+      return NULL;
+    c = *(*inbuf+1);
+    if (c == '<') {
+      obj = pst_new_mark();
+      *inbuf += 2;
+    } else if (isxdigit(c))
+      obj = pst_parse_string(inbuf, inbufend);
+    else if (c == '~') /* ASCII85 */
+      obj = pst_parse_string(inbuf, inbufend);
+    break;
+  case '(':
+    obj = pst_parse_string(inbuf, inbufend);
+    break;
+  case '>':
+    if (*inbuf + 1 >= inbufend || *(*inbuf+1) != '>') {
+      ERROR("Unexpected end of ASCII hex string marker.");
+    } else  {
+      char *mark;
+
+      mark = NEW(3, char);
+      mark[0] = '>'; mark[1] = '>'; mark[2] = '\0';
+      obj = pst_new_obj(PST_TYPE_UNKNOWN, mark);
+      (*inbuf) += 2;
+    }
+    break;
+  case ']': case '}': 
+    {
+      char *mark;
+
+      mark = NEW(2, char);
+      mark[0] = c; mark[1] = '\0';
+      obj = pst_new_obj(PST_TYPE_UNKNOWN, mark);
+      (*inbuf)++;
+    }
+    break;
+  default:
+    if (c == 't' || c == 'f')
+      obj = pst_parse_boolean(inbuf, inbufend);
+    else if (c == 'n')
+      obj = pst_parse_null(inbuf, inbufend);
+    else if (c == '+' || c == '-' || isdigit(c) || c == '.')
+      obj = pst_parse_number(inbuf, inbufend);
+    break;
+  }
+
+  if (!obj) {
+    obj = pst_parse_any(inbuf, inbufend);
+  }
+
+  return obj;
+}