8000 gh-105017: Include CRLF lines in strings and column numbers by mgmacias95 · Pull Request #105030 · python/cpython · GitHub
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gh-105017: Include CRLF lines in strings and column numbers #105030

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Merged
merged 10 commits into from
May 28, 2023
Merged

gh-105017: Include CRLF lines in strings and column numbers #105030

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ad130da
fix(tokenizer): Include CRLF lines in strings and column numbers
mgmacias95 May 27, 2023
6688c36
Merge branch 'main' into crlf_strings
mgmacias95 May 27, 2023
e5293bc
📜🤖 Added by blurb_it.
blurb-it[bot] May 27, 2023
37f77ad
Only preserve crlf in the Python-tokenize extension
pablogsal May 27, 2023
68e7b36
Handle \r\n in continuation lines
pablogsal May 28, 2023
969060f
fixup! Handle \r\n in continuation lines
pablogsal May 28, 2023
559487c
fixup! fixup! Handle \r\n in continuation lines
pablogsal May 28, 2023
363de28
fixup! fixup! fixup! Handle \r\n in continuation lines
pablogsal May 28, 2023
67b3a9c
Update Lib/test/test_tokenize.py
mgmacias95 May 28, 2023
d3d4ff5
Prevent leak
mgmacias95 May 28, 2023
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Only preserve crlf in the Python-tokenize extension
  • Loading branch information
@pablogsal
pablogsal committed May 27, 2023
commit 37f77adc0f865a579e22a8c9db3196ae7330cdab
4 changes: 2 additions & 2 deletions Parser/pegen.c
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Expand Up @@ -924,9 +924,9 @@ _PyPegen_run_parser_from_string(const char *str, int start_rule, PyObject *filen

struct tok_state *tok;
if (flags != NULL && flags->cf_flags & PyCF_IGNORE_COOKIE) {
tok = _PyTokenizer_FromUTF8(str, exec_input);
tok = _PyTokenizer_FromUTF8(str, exec_input, 0);
} else {
tok = _PyTokenizer_FromString(str, exec_input);
tok = _PyTokenizer_FromString(str, exec_input, 0);
}
if (tok == NULL) {
if (PyErr_Occurred()) {
Expand Down
32 changes: 22 additions & 10 deletions Parser/tokenizer.c
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Expand Up @@ -772,7 +772,9 @@ translate_into_utf8(const char* str, const char* enc) {


static char *
translate_newlines(const char *s, int exec_input, struct tok_state *tok) {
translate_newlines(const char *s, int exec_input, int preserve_crlf,
struct tok_state *tok) {
int skip_next_lf = 0;
size_t needed_length = strlen(s) + 2, final_length;
char *buf, *current;
char c = '\0';
Expand All @@ -783,8 +785,18 @@ translate_newlines(const char *s, int exec_input, struct tok_state *tok) {
}
for (current = buf; *s; s++, current++) {
c = *s;
if (!c)
break;
if (skip_next_lf) {
skip_next_lf = 0;
if (c == '\n') {
c = *++s;
if (!c)
break;
}
}
if (!preserve_crlf && c == '\r') {
skip_next_lf = 1;
c = '\n';
}
*current = c;
}
/* If this is exec input, add a newline to the end of the string if
Expand All @@ -811,14 +823,14 @@ translate_newlines(const char *s, int exec_input, struct tok_state *tok) {
inside TOK. */

static char *
decode_str(const char *input, int single, struct tok_state *tok)
decode_str(const char *input, int single, struct tok_state *tok, int preserve_crlf)
{
PyObject* utf8 = NULL;
char *str;
const char *s;
const char *newl[2] = {NULL, NULL};
int lineno = 0;
tok->input = str = translate_newlines(input, single, tok);
tok->input = str = translate_newlines(input, single, preserve_crlf, tok);
if (str == NULL)
return NULL;
tok->enc = NULL;
Expand Down Expand Up @@ -870,14 +882,14 @@ decode_str(const char *input, int single, struct tok_state *tok)
/* Set up tokenizer for string */

struct tok_state *
_PyTokenizer_FromString(const char *str, int exec_input)
_PyTokenizer_FromString(const char *str, int exec_input, int preserve_crlf)
{
struct tok_state *tok = tok_new();
char *decoded;

if (tok == NULL)
return NULL;
decoded = decode_str(str, exec_input, tok);
decoded = decode_str(str, exec_input, tok, preserve_crlf);
if (decoded == NULL) {
_PyTokenizer_Free(tok);
return NULL;
Expand All @@ -891,13 +903,13 @@ _PyTokenizer_FromString(const char *str, int exec_input)
/* Set up tokenizer for UTF-8 string */

struct tok_state *
_PyTokenizer_FromUTF8(const char *str, int exec_input)
_PyTokenizer_FromUTF8(const char *str, int exec_input, int preserve_crlf)
{
struct tok_state *tok = tok_new();
char *translated;
if (tok == NULL)
return NULL;
tok->input = translated = translate_newlines(str, exec_input, tok);
tok->input = translated = translate_newlines(str, exec_input, preserve_crlf, tok);
if (translated == NULL) {
_PyTokenizer_Free(tok);
return NULL;
Expand Down Expand Up @@ -1039,7 +1051,7 @@ tok_underflow_interactive(struct tok_state *tok) {
}
char *newtok = PyOS_Readline(tok->fp ? tok->fp : stdin, stdout, tok->prompt);
if (newtok != NULL) {
char *translated = translate_newlines(newtok, 0, tok);
char *translated = translate_newlines(newtok, 0, 0, tok);
PyMem_Free(newtok);
if (translated == NULL) {
return 0;
Expand Down
4 changes: 2 additions & 2 deletions Parser/tokenizer.h
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Expand Up @@ -135,8 +135,8 @@ struct tok_state {
#endif
};

extern struct tok_state *_PyTokenizer_FromString(const char *, int);
extern struct tok_state *_PyTokenizer_FromUTF8(const char *, int);
extern struct tok_state *_PyTokenizer_FromString(const char *, int, int);
extern struct tok_state *_PyTokenizer_FromUTF8(const char *, int, int);
extern struct tok_state *_PyTokenizer_FromFile(FILE *, const char*,
const char *, const char *);
extern void _PyTokenizer_Free(struct tok_state *);
Expand Down
2 changes: 1 addition & 1 deletion Python/Python-tokenize.c
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Expand Up @@ -55,7 +55,7 @@ tokenizeriter_new_impl(PyTypeObject *type, const char *source,
if (filename == NULL) {
return NULL;
}
self->tok = _PyTokenizer_FromUTF8(source, 1);
self->tok = _PyTokenizer_FromUTF8(source, 1, 1);
if (self->tok == NULL) {
Py_DECREF(filename);
return NULL;
Expand Down
0