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fix: support for carriage return

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overflowerror 2024-05-18 19:18:15 +02:00
parent c2e60dd25c
commit 9d08afd1a1
5 changed files with 7 additions and 1 deletions
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4
compiler/src/lexer.l
View file

@ -13,7 +13,7 @@ map "map"
rmap "rmap"
in "in"
char "'"([^\\]|[\\]n|[\\]t|[\\]{2})"'"
char "'"([^\\]|[\\]n|[\\]t|[\\]r|[\\]{2})"'"
id [a-zA-Z_][a-zA-Z0-9_]*
include "#include"
@ -58,6 +58,7 @@ char char_escape(const char* yytext) {
if (yytext[2] == '\\') return '\\';
else if (yytext[2] == 'n') return '\n';
else if (yytext[2] == 't') return '\t';
else if (yytext[2] == 'r') return '\r';
else lex_panic("unknown escape sequence: %s\n", yytext);
} else {
return yytext[1];
@ -118,6 +119,7 @@ int nested_braces = 0;
<STRING>[^\\"\n]* { strbuf_append(strbuf, yytext); }
<STRING>\\n { strbuf_append_c(strbuf, '\n'); }
<STRING>\\t { strbuf_append_c(strbuf, '\t'); }
<STRING>\\r { strbuf_append_c(strbuf, '\r'); }
<STRING>\\[0-7]* { strbuf_append_c(strbuf, strtol(yytext+1, 0, 8)); }
<STRING>\\[\\"] { strbuf_append_c(strbuf, yytext[1]); }
<STRING>\" { yylval.str = strdup(strbuf); BEGIN INITIAL; return STR; }

1
compiler/test/cases/001b-bug-carriage-return-in-char.in Normal file
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@ -0,0 +1 @@
print('a', '\r', 'b', '\n');

1
compiler/test/cases/001b-bug-carriage-return-in-char.out Normal file
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@ -0,0 +1 @@
[-]+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++>[-]+++++++++++++>[-]++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++>[-]++++++++++<<<.>.>.>.

1
compiler/test/cases/002b-bug-carriage-return-in-str.in Normal file
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@ -0,0 +1 @@
print("a\rb\n");

1
compiler/test/cases/002b-bug-carriage-return-in-str.out Normal file
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@ -0,0 +1 @@
[-]+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++>[-]+++++++++++++>[-]++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++>[-]++++++++++<<<.>.>.>.