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changeset 315:29c33ce6c5bb

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- Added method scanShebang to class Lexer. - TOK.Shebang is recognized by the token highlighter.
author aziz
date Wed, 15 Aug 2007 20:33:02 +0000
parents ebd21bbf296e
children c23a24cc2021
files trunk/src/Lexer.d trunk/src/format.css trunk/src/main.d
diffstat 3 files changed, 51 insertions(+), 2 deletions(-) [+]
line wrap: on
line diff
--- a/trunk/src/Lexer.d	Wed Aug 15 19:57:01 2007 +0000
+++ b/trunk/src/Lexer.d	Wed Aug 15 20:33:02 2007 +0000
@@ -60,6 +60,50 @@
     this.head = new Token;
     this.head.type = TOK.HEAD;
     this.token = this.head;
+    scanShebang();
+  }
+
+  void scanShebang()
+  {
+    if (*p == '#' && p[1] == '!')
+    {
+      Token* t = new Token;
+      t.start = p;
+      t.type = TOK.Shebang;
+      ++p;
+      while (1)
+      {
+        switch (*++p)
+        {
+        case '\r':
+          if (p[1] == '\n')
+            ++p;
+        case '\n':
+          ++loc;
+          if (p[-1] == '\r')
+            t.end = p-1;
+          else
+            t.end = p;
+          break;
+        case LS[0]:
+          t.end = p;
+          if (p[1] == LS[1] && (p[2] == LS[2] || p[2] == PS[2]))
+          {
+            ++p; ++p;
+            ++loc;
+          }
+          break;
+        case 0, _Z_:
+          t.end = p;
+          break;
+        default:
+          continue;
+        }
+        break; // Exit loop.
+      }
+      this.head.next = t;
+      t.prev = this.head;
+    }
   }
 
   public void scan(out Token t)
--- a/trunk/src/format.css	Wed Aug 15 19:57:01 2007 +0000
+++ b/trunk/src/format.css	Wed Aug 15 20:33:02 2007 +0000
@@ -32,6 +32,8 @@
 br { color: orange; }
 /* Special tokens */
 st { color: green; font-weight: bold; }
+/* When the first line starts with #! it's a "shebang" */
+shebang { color: gray; }
 /* Particular operators */
 op[c=aa] { content: "and"; } /*&& ∧*/
 op[c=oo] { content: "or"; } /*|| ∨*/
--- a/trunk/src/main.d	Wed Aug 15 19:57:01 2007 +0000
+++ b/trunk/src/main.d	Wed Aug 15 20:33:02 2007 +0000
@@ -79,8 +79,8 @@
   auto token = lx.getTokens();
   char* end = lx.text.ptr;
 
-  writef(`<?xml version="1.0"?>`
-         `<?xml-stylesheet href="format.css" type="text/css"?>`
+  writefln(`<?xml version="1.0"?>`\n
+         `<?xml-stylesheet href="format.css" type="text/css"?>`\n
          `<root>`);
   if (lx.errors.length)
   {
@@ -188,6 +188,9 @@
     case TOK.Special:
       writef("<st>%s</st>", srcText);
       break;
+    case TOK.Shebang:
+      writef("<shebang>%s</shebang>", srcText);
+      break;
     default:
       if (token.isKeyword())
         writef("<k>%s</k>", srcText);