Changeset 7ba2ad4 for fmtext.c

Timestamp:

Sep 18, 2010, 3:17:27 PM (14 years ago)

Author:

David Benjamin <davidben@mit.edu>

Branches:

master, release-1.10, release-1.7, release-1.8, release-1.9

Children:

b3b1b05

Parents:

4cf7b1b

git-author:

David Benjamin <davidben@mit.edu> (07/31/10 20:30:49)

git-committer:

David Benjamin <davidben@mit.edu> (09/18/10 15:17:27)

Message:

Implement owl_fmtext_line_extents and add test case

File:

• fmtext.c (modified) (1 diff)

fmtext.c

@@ -597 +597 @@
 }
 
+/* Searches for line 'lineno' in 'f'. The returned range, [start,
+ * end), forms a half-open interval for the extent of the line. */
+void owl_fmtext_line_extents(const owl_fmtext *f, int lineno, int *o_start, int *o_end)
+{
+  int start, end;
+  char *newline;
+  for (start = 0; lineno > 0 && start < f->textlen; start++) {
+    if (f->textbuff[start] == '\n')
+      lineno--;
+  }
+  newline = strchr(f->textbuff + start, '\n');
+  /* Include the newline, if it is there. */
+  end = newline ? newline - f->textbuff + 1 : f->textlen;
+  if (o_start) *o_start = start;
+  if (o_end) *o_end = end;
+}
+
 const char *owl_fmtext_get_text(const owl_fmtext *f)
 {