Fix for UNFINISHED REGEX syntax error when parsing true / false (fix …

…#2424)
espruino · Nov 2, 2023 · 0f1b5b0 · 0f1b5b0
1 parent e4308c2
commit 0f1b5b0
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diff --git a/ChangeLog b/ChangeLog
@@ -16,6 +16,7 @@
             Add ES9 optional catch binding (`try {} catch {}`) 
             Bangle.js: Fix terminal's repeated call to '.flip' that broke double buffering on Bangle.js 1
             JIT: Ensure ternary block skips 'named' variables (and references them correctly)
+            Fix for UNFINISHED REGEX syntax error when parsing `true / false` (fix #2424)
 
      2v19 : Fix Object.values/entries for numeric keys after 2v18 regression (fix #2375)
             nRF52: for SD>5 use static buffers for advertising and scan response data (#2367)

diff --git a/src/jslex.c b/src/jslex.c
@@ -789,7 +789,8 @@ void jslGetNextToken() {
       case JSLJT_FORWARDSLASH:
       // yay! JS is so awesome.
       if (lastToken==LEX_EOF ||
-          (lastToken>=_LEX_TOKENS_START && lastToken<=_LEX_TOKENS_END) || // any keyword or operator
+          (lastToken>=_LEX_TOKENS_START && lastToken<=_LEX_TOKENS_END && // keyword or operator
+           lastToken!=LEX_R_TRUE && lastToken!=LEX_R_FALSE && lastToken!=LEX_R_NULL && lastToken!=LEX_R_UNDEFINED) || // but not values (#2424)
           lastToken=='!' ||
           lastToken=='%' ||
           lastToken=='&' ||