1 files changed, 120 insertions, 0 deletions
diff --git a/data/lighttpd/lighttpd-1.4.53/src/mod_ssi_exprparser.y b/data/lighttpd/lighttpd-1.4.53/src/mod_ssi_exprparser.y
new file mode 100644
index 000000000..0b18edc14
--- /dev/null
+++ b/data/lighttpd/lighttpd-1.4.53/src/mod_ssi_exprparser.y
@@ -0,0 +1,120 @@
+%token_prefix TK_
+%token_type {buffer *}
+%extra_argument {ssi_ctx_t *ctx}
+%name ssiexprparser
+
+%include {
+#include "first.h"
+#include "mod_ssi_expr.h"
+#include "buffer.h"
+
+#include <string.h>
+}
+
+%parse_failure {
+  ctx->ok = 0;
+}
+
+%type expr { ssi_val_t * }
+%type value { buffer * }
+%type exprline { ssi_val_t * }
+%type cond { int }
+%token_destructor { buffer_free($$); }
+
+%left AND.
+%left OR.
+%nonassoc EQ NE GT GE LT LE.
+%right NOT.
+
+input ::= exprline(B). {
+  ctx->val.bo = ssi_val_tobool(B);
+  ctx->val.type = SSI_TYPE_BOOL;
+
+  ssi_val_free(B);
+}
+
+exprline(A) ::= expr(B) cond(C) expr(D). {
+  int cmp;
+
+  if (B->type == SSI_TYPE_STRING &&
+      D->type == SSI_TYPE_STRING) {
+       cmp = strcmp(B->str->ptr, D->str->ptr);
+  } else {
+    cmp = ssi_val_tobool(B) - ssi_val_tobool(D);
+  }
+
+  A = B;
+
+  switch(C) {
+  case SSI_COND_EQ: A->bo = (cmp == 0) ? 1 : 0; break;
+  case SSI_COND_NE: A->bo = (cmp != 0) ? 1 : 0; break;
+  case SSI_COND_GE: A->bo = (cmp >= 0) ? 1 : 0; break;
+  case SSI_COND_GT: A->bo = (cmp > 0) ? 1 : 0; break;
+  case SSI_COND_LE: A->bo = (cmp <= 0) ? 1 : 0; break;
+  case SSI_COND_LT: A->bo = (cmp < 0) ? 1 : 0; break;
+  }
+
+  A->type = SSI_TYPE_BOOL;
+
+  ssi_val_free(D);
+}
+exprline(A) ::= expr(B). {
+  A = B;
+}
+expr(A) ::= expr(B) AND expr(C). {
+  int e;
+
+  e = ssi_val_tobool(B) && ssi_val_tobool(C);
+
+  A = B;
+  A->bo = e;
+  A->type = SSI_TYPE_BOOL;
+  ssi_val_free(C);
+}
+
+expr(A) ::= expr(B) OR expr(C). {
+  int e;
+
+  e = ssi_val_tobool(B) || ssi_val_tobool(C);
+
+  A = B;
+  A->bo = e;
+  A->type = SSI_TYPE_BOOL;
+  ssi_val_free(C);
+}
+
+expr(A) ::= NOT expr(B). {
+  int e;
+
+  e = !ssi_val_tobool(B);
+
+  A = B;
+  A->bo = e;
+  A->type = SSI_TYPE_BOOL;
+}
+expr(A) ::= LPARAN exprline(B) RPARAN. {
+  A = B;
+}
+
+expr(A) ::= value(B). {
+  A = ssi_val_init();
+  A->str = B;
+  A->type = SSI_TYPE_STRING;
+}
+
+value(A) ::= VALUE(B). {
+  A = B;
+}
+
+value(A) ::= value(B) VALUE(C). {
+  A = B;
+  buffer_append_string_buffer(A, C);
+  buffer_free(C);
+}
+
+cond(A) ::= EQ. { A = SSI_COND_EQ; }
+cond(A) ::= NE. { A = SSI_COND_NE; }
+cond(A) ::= LE. { A = SSI_COND_LE; }
+cond(A) ::= GE. { A = SSI_COND_GE; }
+cond(A) ::= LT. { A = SSI_COND_LT; }
+cond(A) ::= GT. { A = SSI_COND_GT; }