From a93cc453bd8072e7d79ebe8f00614e1b99eb5852 Mon Sep 17 00:00:00 2001
From: Nicholas <nbnoll@eml.cc>
Date: Mon, 15 Nov 2021 18:54:20 -0800
Subject: Feat: added match keyword

However, it is not tested in the slightest.
---
 src/cmd/rc/exec.c   | 22 ++++++++++++++++++++++
 src/cmd/rc/exec.h   |  1 +
 src/cmd/rc/syntax.y |  3 ++-
 3 files changed, 25 insertions(+), 1 deletion(-)

(limited to 'src/cmd')

diff --git a/src/cmd/rc/exec.c b/src/cmd/rc/exec.c
index 62375df..2bdaebd 100644
--- a/src/cmd/rc/exec.c
+++ b/src/cmd/rc/exec.c
@@ -711,6 +711,28 @@ Xgoto(void)
     runner->code.i = runner->code.exe[runner->code.i].i;
 }
 
+void
+Xmatch(void)
+{
+    Word *p;
+    Word *s;
+
+    for(p=runner->args->word; p; p=p->link){
+        for(s=runner->args->link->word; s; s=s->link){
+            if(match(s->str, p->str, 0))
+                goto match;
+        }
+    }
+nomatch:
+    runner->status = 0;
+    goto cleanup;
+match:
+    runner->status = 1;
+cleanup:
+    poplist();
+    poplist();
+}
+
 void
 Xcase(void)
 {
diff --git a/src/cmd/rc/exec.h b/src/cmd/rc/exec.h
index 78250f1..d14c0f6 100644
--- a/src/cmd/rc/exec.h
+++ b/src/cmd/rc/exec.h
@@ -8,6 +8,7 @@
  */
 
 void Xcase(void);
+void Xmatch(void);
 void Xmark(void);           // Xmark            marks stack location for word
 void Xindex(void);          // Xindex
 void Xlocal(void);          // Xlocal(name,val) create local variable, assign value
diff --git a/src/cmd/rc/syntax.y b/src/cmd/rc/syntax.y
index 9750002..78a7ae2 100644
--- a/src/cmd/rc/syntax.y
+++ b/src/cmd/rc/syntax.y
@@ -93,6 +93,7 @@ cmd:
 | assign cmd %prec Tbang                        { $$ = hangchild1($1, $2, 2); }
 | Tbang cmd                                     { $$ = maketree1(Tbang, $2); }
 | Tsubshell cmd                                 { $$ = maketree1(Tsubshell, $2); }
+| Ttwiddle word words                           { $$ = hangchild2($1, $2, 0, $3, 1); }
 | Tfor '(' word ')' nl cmd                      { $$ = hangchild3($1, $3, nil, $6); }
 | Tfor '(' word Tin words ')' nl cmd            { $$ = hangchild3($1, $3, $5, $8); }
 | Twhile paren nl cmd                           { $$ = hangchild2($1, $2, 0, $4, 1); }
@@ -127,7 +128,7 @@ nonkeyword:
 //| Tredir block    { $$ = hangchild1($1, $2, 0); $$->type = Tpipefd; }
 
 keyword:
-    Tfor|Tin|Twhile|Tif|Telse|Tswitch|Tcase|Tbang|Tsubshell|Tfunc
+    Tfor|Tin|Twhile|Tif|Telse|Tswitch|Tcase|Tbang|Tsubshell|Ttwiddle|Tfunc
 
 words:
 /* empty */  { $$ = nil; }
-- 
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