simple fix for underflow

9760b7f1 · Frank Celler · fc125524 · 9760b7f1
Commit 9760b7f1 authored Apr 22, 2012 by Frank Celler
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Showing with 5 additions and 4 deletions

src/parse.y src/parse.y +5 -4

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--- a/src/parse.y
+++ b/src/parse.y
@@ -2976,17 +2976,18 @@ nextc(parser_state *p)
    c = *p->s++;
  }
  if (c == '\n') {
-    if (p->nerr < 1) {
+    if (p->column < 0) {
+      p->column++; // pushback caused an underflow
+    }
+    else {
      p->lineno++;
      p->column = 0;
    }
    // must understand heredoc
  }
  else {
-    if (p->nerr < 1) {
    p->column++;
  }
-  }
  return c;
 }