From 33c3e2121e185e619cd993280b23038b4490f4f5 Mon Sep 17 00:00:00 2001
From: Tavian Barnes <tavianator@gmail.com>
Date: Tue, 27 Oct 2009 20:39:29 -0400
Subject: Add line and column numbers to tokens.

---
 dimension/tokenize.c | 8 +++++++-
 dimension/tokenize.h | 3 +++
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/dimension/tokenize.c b/dimension/tokenize.c
index c34cfc6..1d53f2f 100644
--- a/dimension/tokenize.c
+++ b/dimension/tokenize.c
@@ -56,8 +56,10 @@ dmnsn_tokenize(FILE *file)
   unsigned int i;
 
   while (next - map < size) {
-    /* Saves us some code repetition in the vast majority of cases */
+    /* Saves us some code repetition */
     token.value = NULL;
+    token.line  = line;
+    token.col   = col;
 
     switch (*next) {
     case ' ':
@@ -121,12 +123,16 @@ dmnsn_tokenize(FILE *file)
         token.value = malloc(endf - next + 1);
         strncpy(token.value, next, endf - next);
         token.value[endf - next] = '\0';
+
+        col += endf - next;
         next = endf;
       } else if (endi > next) {
         token.type = DMNSN_INT;
         token.value = malloc(endi - next + 1);
         strncpy(token.value, next, endi - next);
         token.value[endi - next] = '\0';
+
+        col += endi - next;
         next = endi;
       } else {
         fprintf(stderr, "Invalid numeric value on line %u, column %u.\n",
diff --git a/dimension/tokenize.h b/dimension/tokenize.h
index 91d59f6..938eb5f 100644
--- a/dimension/tokenize.h
+++ b/dimension/tokenize.h
@@ -45,6 +45,9 @@ typedef struct dmnsn_token dmnsn_token;
 struct dmnsn_token {
   dmnsn_token_type type;
   char *value;
+
+  /* Line and column numbers from source code */
+  unsigned int line, col;
 };
 
 dmnsn_array *dmnsn_tokenize(FILE *file);
-- 
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