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| author | Martin v. Löwis <martin@v.loewis.de> | 2002-10-26 14:39:10 (GMT) |
|---|---|---|
| committer | Martin v. Löwis <martin@v.loewis.de> | 2002-10-26 14:39:10 (GMT) |
| commit | 566f6afe9a9de23132302020dcb4c612d5180f23 (patch) | |
| tree | 4475264f5fe2cd2183321e1dcd06fcd29dab9644 /Parser/myreadline.c | |
| parent | 88afe666daf18cb93f78b2e7e025cb469ef7f551 (diff) | |
| download | cpython-566f6afe9a9de23132302020dcb4c612d5180f23.zip cpython-566f6afe9a9de23132302020dcb4c612d5180f23.tar.gz cpython-566f6afe9a9de23132302020dcb4c612d5180f23.tar.bz2 | |
Patch #512981: Update readline input stream on sys.stdin/out change.
Diffstat (limited to 'Parser/myreadline.c')
| -rw-r--r-- | Parser/myreadline.c | 28 |
1 files changed, 20 insertions, 8 deletions
diff --git a/Parser/myreadline.c b/Parser/myreadline.c index 8fe25ec..7b7ef7e 100644 --- a/Parser/myreadline.c +++ b/Parser/myreadline.c @@ -87,14 +87,14 @@ my_fgets(char *buf, int len, FILE *fp) /* Readline implementation using fgets() */ char * -PyOS_StdioReadline(char *prompt) +PyOS_StdioReadline(FILE *sys_stdin, FILE *sys_stdout, char *prompt) { size_t n; char *p; n = 100; if ((p = PyMem_MALLOC(n)) == NULL) return NULL; - fflush(stdout); + fflush(sys_stdout); #ifndef RISCOS if (prompt) fprintf(stderr, "%s", prompt); @@ -107,7 +107,7 @@ PyOS_StdioReadline(char *prompt) } #endif fflush(stderr); - switch (my_fgets(p, (int)n, stdin)) { + switch (my_fgets(p, (int)n, sys_stdin)) { case 0: /* Normal case */ break; case 1: /* Interrupt */ @@ -135,7 +135,7 @@ PyOS_StdioReadline(char *prompt) if (incr > INT_MAX) { PyErr_SetString(PyExc_OverflowError, "input line too long"); } - if (my_fgets(p+n, (int)incr, stdin) != 0) + if (my_fgets(p+n, (int)incr, sys_stdin) != 0) break; n += strlen(p+n); } @@ -148,20 +148,32 @@ PyOS_StdioReadline(char *prompt) Note: Python expects in return a buffer allocated with PyMem_Malloc. */ -char *(*PyOS_ReadlineFunctionPointer)(char *); +char *(*PyOS_ReadlineFunctionPointer)(FILE *, FILE *, char *); /* Interface used by tokenizer.c and bltinmodule.c */ char * -PyOS_Readline(char *prompt) +PyOS_Readline(FILE *sys_stdin, FILE *sys_stdout, char *prompt) { char *rv; + if (PyOS_ReadlineFunctionPointer == NULL) { - PyOS_ReadlineFunctionPointer = PyOS_StdioReadline; + PyOS_ReadlineFunctionPointer = PyOS_StdioReadline; } + Py_BEGIN_ALLOW_THREADS - rv = (*PyOS_ReadlineFunctionPointer)(prompt); + + /* This is needed to handle the unlikely case that the + * interpreter is in interactive mode *and* stdin/out are not + * a tty. This can happen, for example if python is run like + * this: python -i < test1.py + */ + if (!isatty (fileno (sys_stdin)) || !isatty (fileno (sys_stdout))) + rv = PyOS_StdioReadline (sys_stdin, sys_stdout, prompt); + else + rv = (*PyOS_ReadlineFunctionPointer)(sys_stdin, sys_stdout, + prompt); Py_END_ALLOW_THREADS return rv; } |