From 69487ed29aed49ca0e3481e9783e02e9156258b2 Mon Sep 17 00:00:00 2001
From: Nicholas Noll <nbnoll@eml.cc>
Date: Fri, 22 May 2020 17:14:48 -0700
Subject: fix: encapsulated the IO stack into the lexer

---
 sys/cmd/cc/pp.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

(limited to 'sys/cmd/cc/pp.c')

diff --git a/sys/cmd/cc/pp.c b/sys/cmd/cc/pp.c
index 30a162b..5eed4b2 100644
--- a/sys/cmd/cc/pp.c
+++ b/sys/cmd/cc/pp.c
@@ -3,6 +3,17 @@
 // -----------------------------------------------------------------------
 // helper functions
 
+static
+void
+pushomit(Lexer *lx, string omit)
+{
+    if (lx->omit.len == lx->omit.cap) {
+        lx->omit.cap += 20;
+        lx->omit.path = realloc(lx->omit.path, lx->omit.cap*sizeof(*lx->omit.path));
+    }
+    lx->omit.path[lx->omit.len++] = omit;
+}
+
 // NOTE: The iterator of lexer lx->b IS NOT reset.
 //       Its the caller's responsibility.
 static
@@ -910,7 +921,7 @@ ppprag(Lexer *lx)
     }
     lx->b = lx->buf;
     if (strcmp(s, "once") == 0) {
-        pushomit(lx->io->path);
+        pushomit(lx, lx->io->path);
         return 0;
     }
 Bad:
-- 
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