From f7cbf94918d04cb189252776f67d0cc0765ebbf2 Mon Sep 17 00:00:00 2001
From: Ali Gholami Rudi <ali@rudi.ir>
Date: Fri, 6 Mar 2009 20:34:07 +0330
Subject: [PATCH] fmt: add $raw$ for inserting tex formula

---
 ctxt.c | 5 +++++
 ctxt.h | 1 +
 fmt.c  | 9 ++++++++-
 3 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/ctxt.c b/ctxt.c
index 7c17b86..a25e039 100644
--- a/ctxt.c
+++ b/ctxt.c
@@ -82,6 +82,10 @@ static void latex_put_emph(int fd, char *s)
 	file_put(fd, "}");
 }
 
+static void latex_put_raw(int fd, char *s)
+{
+	file_put(fd, s);
+}
 
 struct fmt_ops latex_ops = {
 	.doc_beg	= latex_doc_beg,
@@ -95,6 +99,7 @@ struct fmt_ops latex_ops = {
 	.item_beg	= latex_item_beg,
 	.item_end	= latex_item_end,
 	.put_emph	= latex_put_emph,
+	.put_raw	= latex_put_raw,
 	.put		= latex_put};
 
 int main(int argc, char **argv)
diff --git a/ctxt.h b/ctxt.h
index 71f512d..cc97626 100644
--- a/ctxt.h
+++ b/ctxt.h
@@ -16,6 +16,7 @@ struct fmt_ops {
 	void (*item_end)(int fd);
 	void (*put)(int fd, char *s);
 	void (*put_emph)(int fd, char *s);
+	void (*put_raw)(int fd, char *s);
 };
 
 struct txt {
diff --git a/fmt.c b/fmt.c
index d1d6d4b..c944d25 100644
--- a/fmt.c
+++ b/fmt.c
@@ -61,7 +61,7 @@ static int doc_head(struct doc *doc, int beg, int end)
 }
 
 static char *possible_inline(char *s) {
-	char *signs = "*";
+	char *signs = "*$";
 	while (*s) {
 		if (strchr(signs, *s))
 			return s;
@@ -89,6 +89,13 @@ static char *doc_put_inline(struct doc *doc, char *s)
 			doc->ops->put_emph(doc->fd, buf);
 		}
 		return r + 1;
+	case '$':
+		r = strchr(s + 1, *s);
+		if (r) {
+			fillbuf(buf, LENGTH(buf), s, r + 1);
+			doc->ops->put_raw(doc->fd, buf);
+		}
+		return r + 1;
 	default:
 		break;
 	}
-- 
2.11.4.GIT