diff options
Diffstat (limited to 'main.c')
| -rw-r--r-- | main.c | 33 |
1 files changed, 31 insertions, 2 deletions
@@ -1,4 +1,4 @@ -/* $Id: main.c,v 1.35 2010/12/27 01:21:59 tom Exp $ */ +/* $Id: main.c,v 1.36 2011/09/06 22:44:45 tom Exp $ */ #include <signal.h> #include <unistd.h> /* for _exit() */ @@ -34,6 +34,7 @@ static MY_TMPFILES *my_tmpfiles; char dflag; char gflag; +char iflag; char lflag; static char oflag; char rflag; @@ -53,7 +54,9 @@ static char *file_prefix = default_file_prefix; char *code_file_name; char *input_file_name = empty_string; -static char *defines_file_name; +char *defines_file_name; +char *externs_file_name; + static char *graph_file_name; static char *output_file_name; static char *verbose_file_name; @@ -62,6 +65,7 @@ FILE *action_file; /* a temp file, used to save actions associated */ /* with rules until the parser is written */ FILE *code_file; /* y.code.c (used when the -r option is specified) */ FILE *defines_file; /* y.tab.h */ +FILE *externs_file; /* y.tab.i */ FILE *input_file; /* the input file */ FILE *output_file; /* y.tab.c */ FILE *text_file; /* a temp file, used to save text until all */ @@ -132,6 +136,9 @@ done(int k) if (dflag) DO_FREE(defines_file_name); + if (iflag) + DO_FREE(externs_file_name); + if (oflag) DO_FREE(output_file_name); @@ -187,6 +194,7 @@ usage(void) ,"Options:" ," -b file_prefix set filename prefix (default \"y.\")" ," -d write definitions (y.tab.h)" + ," -i write interface (y.tab.i)" ," -g write a graphical description" ," -l suppress #line directives" ," -o output_file (default \"y.tab.c\")" @@ -220,6 +228,10 @@ setflag(int ch) gflag = 1; break; + case 'i': + iflag = 1; + break; + case 'l': lflag = 1; break; @@ -359,17 +371,22 @@ create_file_names(void) { size_t len; const char *defines_suffix; + const char *externs_suffix; char *prefix; prefix = NULL; defines_suffix = DEFINES_SUFFIX; + externs_suffix = EXTERNS_SUFFIX; /* compute the file_prefix from the user provided output_file_name */ if (output_file_name != 0) { if (!(prefix = strstr(output_file_name, ".tab.c")) && (prefix = strstr(output_file_name, ".c"))) + { defines_suffix = ".h"; + externs_suffix = ".i"; + } } if (prefix != NULL) @@ -401,6 +418,11 @@ create_file_names(void) CREATE_FILE_NAME(defines_file_name, defines_suffix); } + if (iflag) + { + CREATE_FILE_NAME(externs_file_name, externs_suffix); + } + if (vflag) { CREATE_FILE_NAME(verbose_file_name, VERBOSE_SUFFIX); @@ -592,6 +614,13 @@ open_files(void) union_file = open_tmpfile("union_file"); } + if (iflag) + { + externs_file = fopen(externs_file_name, "w"); + if (externs_file == 0) + open_error(externs_file_name); + } + output_file = fopen(output_file_name, "w"); if (output_file == 0) open_error(output_file_name); |