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SF patch #455966: Allow leading 0 in float/imag literals.

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Consequences for Jython still unknown (but raised on Jython-Dev).
This commit is contained in:
Tim Peters 2001-08-30 20:51:59 +00:00
parent 21922aa939
commit d507dab91f
5 changed files with 84 additions and 15 deletions
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25
Parser/tokenizer.c
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@ -722,7 +722,7 @@ PyTokenizer_Get(register struct tok_state *tok, char **p_start,
/* Number */
if (isdigit(c)) {
if (c == '0') {
/* Hex or octal */
/* Hex or octal -- maybe. */
c = tok_nextc(tok);
if (c == '.')
goto fraction;
@ -737,13 +737,31 @@ PyTokenizer_Get(register struct tok_state *tok, char **p_start,
} while (isxdigit(c));
}
else {
/* XXX This is broken! E.g.,
09.9 should be accepted as float! */
int found_decimal = 0;
/* Octal; c is first char of it */
/* There's no 'isoctdigit' macro, sigh */
while ('0' <= c && c < '8') {
c = tok_nextc(tok);
}
if (isdigit(c)) {
found_decimal = 1;
do {
c = tok_nextc(tok);
} while (isdigit(c));
}
if (c == '.')
goto fraction;
else if (c == 'e' || c == 'E')
goto exponent;
#ifndef WITHOUT_COMPLEX
else if (c == 'j' || c == 'J')
goto imaginary;
#endif
else if (found_decimal) {
tok->done = E_TOKEN;
tok_backup(tok, c);
return ERRORTOKEN;
}
}
if (c == 'l' || c == 'L')
c = tok_nextc(tok);
@ -765,6 +783,7 @@ PyTokenizer_Get(register struct tok_state *tok, char **p_start,
} while (isdigit(c));
}
if (c == 'e' || c == 'E') {
exponent:
/* Exponent part */
c = tok_nextc(tok);
if (c == '+' || c == '-')