Expression that subtracts a literal number without space fails to parse #133
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gthb
changed the title
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I tried out just moving the lexer definitions of diff --git a/src/lexer.ts b/src/lexer.ts
index eafe785..360cbfc 100644
--- a/src/lexer.ts
+++ b/src/lexer.ts
@@ -51,8 +51,6 @@ export const lexer = compile({
star: '*',
comma: ',',
space: { match: /[\s\t\n\v\f\r]+/, lineBreaks: true, },
- int: /\-?\d+(?![\.\d])/,
- float: /\-?(?:(?:\d*\.\d+)|(?:\d+\.\d*))/,
// word: /[a-zA-Z][A-Za-z0-9_\-]*/,
lparen: '(',
rparen: ')',
@@ -71,6 +69,8 @@ export const lexer = compile({
op_membertext: '->>',
op_member: '->',
op_minus: '-',
+ int: /\-?\d+(?![\.\d])/,
+ float: /\-?(?:(?:\d*\.\d+)|(?:\d+\.\d*))/,
op_div: /\//,
op_not_ilike: /\!~~\*/, // !~~* =ILIKE
op_not_like: /\!~~/, // !~~ =LIKEThat makes some tests fail:
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This existing test passes just fine:
... but adding this corresponding test for subtraction fails:
... with a syntax error saying:
Unexpected int token: "-51"in the spaceless case, so presumably the problem is that lexical analysis outputs the two tokensLITERAL 42,LITERAL -51, but the parsing only works if the tokens areLITERAL 42,MINUS,LITERAL 51, i.e. the minus token should have a higher precedence than the negative integer literal token.Full test failure output
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