#include "cpplib.h"
#include "cpphash.h"
-/* Encapsulates state used to convert the stream of tokens coming from
- cpp_get_token back into a text file. */
-struct printer
-{
- FILE *outf; /* Stream to write to. */
- const struct line_map *map; /* Logical to physical line mappings. */
- const cpp_token *prev; /* Previous token. */
- const cpp_token *source; /* Source token for spacing. */
- unsigned int line; /* Line currently being written. */
- unsigned char printed; /* Nonzero if something output at line. */
-};
-
static void setup_callbacks PARAMS ((cpp_reader *));
/* General output routines. */
static void scan_translation_unit PARAMS ((cpp_reader *));
static void scan_translation_unit_trad PARAMS ((cpp_reader *));
-static void account_for_newlines PARAMS ((const uchar *, size_t));
+static void account_for_newlines PARAMS ((cpp_reader *, const uchar *,
+ size_t));
static int dump_macro PARAMS ((cpp_reader *, cpp_hashnode *, void *));
-static void print_line PARAMS ((const struct line_map *, unsigned int,
- const char *));
-static void maybe_print_line PARAMS ((const struct line_map *, unsigned int));
+static void print_line PARAMS ((cpp_reader *, const struct line_map *,
+ unsigned int, const char *));
+static void maybe_print_line PARAMS ((cpp_reader *, const struct line_map *,
+ unsigned int));
/* Callback routines for the parser. Most of these are active only
in specific modes. */
static void cb_file_change PARAMS ((cpp_reader *, const struct line_map *));
static void cb_def_pragma PARAMS ((cpp_reader *, unsigned int));
-static cpp_options *options; /* Options of pfile. */
-static struct printer print;
-
/* Preprocess and output. */
void
-cpp_preprocess_file (pfile)
+cpp_preprocess_file (pfile, in_fname, out_stream)
cpp_reader *pfile;
+ const char *in_fname;
+ FILE *out_stream;
{
- options = cpp_get_options (pfile);
-
- /* Let preprocessor know if it's only preprocessing. It would be
- nice to lose this somehow. */
- options->preprocess_only = 1;
-
/* Initialize the printer structure. Setting print.line to -1 here
is a trick to guarantee that the first token of the file will
cause a linemarker to be output by maybe_print_line. */
- print.line = (unsigned int) -1;
- print.printed = 0;
- print.prev = 0;
- print.map = 0;
-
- /* Open the output now. We must do so even if no_output is on,
- because there may be other output than from the actual
- preprocessing (e.g. from -dM). */
- if (options->out_fname[0] == '\0')
- print.outf = stdout;
- else
- {
- print.outf = fopen (options->out_fname, "w");
- if (print.outf == NULL)
- {
- cpp_errno (pfile, DL_ERROR, options->out_fname);
- return;
- }
- }
+ pfile->print.line = (unsigned int) -1;
+ pfile->print.printed = 0;
+ pfile->print.prev = 0;
+ pfile->print.map = 0;
+ pfile->print.outf = out_stream;
setup_callbacks (pfile);
- if (cpp_read_main_file (pfile, options->in_fname, NULL))
+ if (cpp_read_main_file (pfile, in_fname, NULL))
{
+ cpp_options *options = &pfile->opts;
cpp_finish_options (pfile);
/* A successful cpp_read_main_file guarantees that we can call
}
/* Flush any pending output. */
- if (print.printed)
- putc ('\n', print.outf);
-
- /* Don't close stdout (dependencies have yet to be output). */
- if (print.outf != stdout)
- {
- if (ferror (print.outf) || fclose (print.outf))
- cpp_errno (pfile, DL_ERROR, options->out_fname);
- }
+ if (pfile->print.printed)
+ putc ('\n', pfile->print.outf);
}
/* Set up the callbacks as appropriate. */
setup_callbacks (pfile)
cpp_reader *pfile;
{
+ cpp_options *options = &pfile->opts;
cpp_callbacks *cb = cpp_get_callbacks (pfile);
if (! options->no_output)
{
bool avoid_paste = false;
- print.source = NULL;
+ pfile->print.source = NULL;
for (;;)
{
const cpp_token *token = cpp_get_token (pfile);
if (token->type == CPP_PADDING)
{
avoid_paste = true;
- if (print.source == NULL
- || (!(print.source->flags & PREV_WHITE)
+ if (pfile->print.source == NULL
+ || (!(pfile->print.source->flags & PREV_WHITE)
&& token->val.source == NULL))
- print.source = token->val.source;
+ pfile->print.source = token->val.source;
continue;
}
/* Subtle logic to output a space if and only if necessary. */
if (avoid_paste)
{
- if (print.source == NULL)
- print.source = token;
- if (print.source->flags & PREV_WHITE
- || (print.prev && cpp_avoid_paste (pfile, print.prev, token))
- || (print.prev == NULL && token->type == CPP_HASH))
- putc (' ', print.outf);
+ if (pfile->print.source == NULL)
+ pfile->print.source = token;
+ if (pfile->print.source->flags & PREV_WHITE
+ || (pfile->print.prev
+ && cpp_avoid_paste (pfile, pfile->print.prev, token))
+ || (pfile->print.prev == NULL && token->type == CPP_HASH))
+ putc (' ', pfile->print.outf);
}
else if (token->flags & PREV_WHITE)
- putc (' ', print.outf);
+ putc (' ', pfile->print.outf);
avoid_paste = false;
- print.source = NULL;
- print.prev = token;
- cpp_output_token (token, print.outf);
+ pfile->print.source = NULL;
+ pfile->print.prev = token;
+ cpp_output_token (token, pfile->print.outf);
if (token->type == CPP_COMMENT)
- account_for_newlines (token->val.str.text, token->val.str.len);
+ account_for_newlines (pfile, token->val.str.text, token->val.str.len);
}
}
-/* Adjust print.line for newlines embedded in output. */
+/* Adjust pfile->print.line for newlines embedded in output. */
static void
-account_for_newlines (str, len)
+account_for_newlines (pfile, str, len)
+ cpp_reader *pfile;
const uchar *str;
size_t len;
{
while (len--)
if (*str++ == '\n')
- print.line++;
+ pfile->print.line++;
}
/* Writes out a traditionally preprocessed file. */
scan_translation_unit_trad (pfile)
cpp_reader *pfile;
{
- for (;;)
+ while (_cpp_read_logical_line_trad (pfile))
{
- size_t len;
-
- if (!_cpp_read_logical_line_trad (pfile))
- break;
- len = pfile->out.cur - pfile->out.base;
- maybe_print_line (print.map, pfile->out.first_line);
- fwrite (pfile->out.base, 1, len, print.outf);
- print.printed = 1;
+ size_t len = pfile->out.cur - pfile->out.base;
+ maybe_print_line (pfile, pfile->print.map, pfile->out.first_line);
+ fwrite (pfile->out.base, 1, len, pfile->print.outf);
+ pfile->print.printed = 1;
if (!CPP_OPTION (pfile, discard_comments))
- account_for_newlines (pfile->out.base, len);
+ account_for_newlines (pfile, pfile->out.base, len);
}
}
different line to the current one, output the required newlines or
a line marker, and return 1. Otherwise return 0. */
static void
-maybe_print_line (map, line)
+maybe_print_line (pfile, map, line)
+ cpp_reader *pfile;
const struct line_map *map;
unsigned int line;
{
/* End the previous line of text. */
- if (print.printed)
+ if (pfile->print.printed)
{
- putc ('\n', print.outf);
- print.line++;
- print.printed = 0;
+ putc ('\n', pfile->print.outf);
+ pfile->print.line++;
+ pfile->print.printed = 0;
}
- if (line >= print.line && line < print.line + 8)
+ if (line >= pfile->print.line && line < pfile->print.line + 8)
{
- while (line > print.line)
+ while (line > pfile->print.line)
{
- putc ('\n', print.outf);
- print.line++;
+ putc ('\n', pfile->print.outf);
+ pfile->print.line++;
}
}
else
- print_line (map, line, "");
+ print_line (pfile, map, line, "");
}
/* Output a line marker for logical line LINE. Special flags are "1"
or "2" indicating entering or leaving a file. */
static void
-print_line (map, line, special_flags)
+print_line (pfile, map, line, special_flags)
+ cpp_reader *pfile;
const struct line_map *map;
unsigned int line;
const char *special_flags;
{
/* End any previous line of text. */
- if (print.printed)
- putc ('\n', print.outf);
- print.printed = 0;
+ if (pfile->print.printed)
+ putc ('\n', pfile->print.outf);
+ pfile->print.printed = 0;
- print.line = line;
- if (! options->no_line_commands)
+ pfile->print.line = line;
+ if (! CPP_OPTION (pfile, no_line_commands))
{
size_t to_file_len = strlen (map->to_file);
unsigned char *to_file_quoted = alloca (to_file_len * 4 + 1);
p = cpp_quote_string (to_file_quoted,
(unsigned char *)map->to_file, to_file_len);
*p = '\0';
- fprintf (print.outf, "# %u \"%s\"%s",
- SOURCE_LINE (map, print.line), to_file_quoted, special_flags);
+ fprintf (pfile->print.outf, "# %u \"%s\"%s",
+ SOURCE_LINE (map, pfile->print.line),
+ to_file_quoted, special_flags);
if (map->sysp == 2)
- fputs (" 3 4", print.outf);
+ fputs (" 3 4", pfile->print.outf);
else if (map->sysp == 1)
- fputs (" 3", print.outf);
+ fputs (" 3", pfile->print.outf);
- putc ('\n', print.outf);
+ putc ('\n', pfile->print.outf);
}
}
of the line, and at end of file will be CPP_EOF. */
static void
cb_line_change (pfile, token, parsing_args)
- cpp_reader *pfile ATTRIBUTE_UNUSED;
+ cpp_reader *pfile;
const cpp_token *token;
int parsing_args;
{
if (token->type == CPP_EOF || parsing_args)
return;
- maybe_print_line (print.map, token->line);
- print.printed = 1;
- print.prev = 0;
- print.source = 0;
+ maybe_print_line (pfile, pfile->print.map, token->line);
+ pfile->print.prev = 0;
+ pfile->print.source = 0;
/* Supply enough spaces to put this token in its original column,
one space per column greater than 2, since scan_translation_unit
will provide a space if PREV_WHITE. Don't bother trying to
reconstruct tabs; we can't get it right in general, and nothing
ought to care. Some things do care; the fault lies with them. */
- if (token->col > 2)
+ if (!CPP_OPTION (pfile, traditional))
{
- unsigned int spaces = token->col - 2;
+ pfile->print.printed = 1;
+ if (token->col > 2)
+ {
+ unsigned int spaces = token->col - 2;
- while (spaces--)
- putc (' ', print.outf);
+ while (spaces--)
+ putc (' ', pfile->print.outf);
+ }
}
}
static void
cb_ident (pfile, line, str)
- cpp_reader *pfile ATTRIBUTE_UNUSED;
+ cpp_reader *pfile;
unsigned int line;
const cpp_string * str;
{
- maybe_print_line (print.map, line);
- fprintf (print.outf, "#ident \"%s\"\n", str->text);
- print.line++;
+ maybe_print_line (pfile, pfile->print.map, line);
+ fprintf (pfile->print.outf, "#ident \"%s\"\n", str->text);
+ pfile->print.line++;
}
static void
unsigned int line;
cpp_hashnode *node;
{
- maybe_print_line (print.map, line);
- fputs ("#define ", print.outf);
+ maybe_print_line (pfile, pfile->print.map, line);
+ fputs ("#define ", pfile->print.outf);
/* -dD command line option. */
- if (options->dump_macros == dump_definitions)
- fputs ((const char *) cpp_macro_definition (pfile, node), print.outf);
+ if (CPP_OPTION (pfile, dump_macros) == dump_definitions)
+ fputs ((const char *) cpp_macro_definition (pfile, node),
+ pfile->print.outf);
else
- fputs ((const char *) NODE_NAME (node), print.outf);
+ fputs ((const char *) NODE_NAME (node), pfile->print.outf);
- putc ('\n', print.outf);
- print.line++;
+ putc ('\n', pfile->print.outf);
+ pfile->print.line++;
}
static void
cb_undef (pfile, line, node)
- cpp_reader *pfile ATTRIBUTE_UNUSED;
+ cpp_reader *pfile;
unsigned int line;
cpp_hashnode *node;
{
- maybe_print_line (print.map, line);
- fprintf (print.outf, "#undef %s\n", NODE_NAME (node));
- print.line++;
+ maybe_print_line (pfile, pfile->print.map, line);
+ fprintf (pfile->print.outf, "#undef %s\n", NODE_NAME (node));
+ pfile->print.line++;
}
static void
const unsigned char *dir;
const cpp_token *header;
{
- maybe_print_line (print.map, line);
- fprintf (print.outf, "#%s %s\n", dir, cpp_token_as_text (pfile, header));
- print.line++;
+ maybe_print_line (pfile, pfile->print.map, line);
+ fprintf (pfile->print.outf, "#%s %s\n", dir,
+ cpp_token_as_text (pfile, header));
+ pfile->print.line++;
}
/* The file name, line number or system header flags have changed, as
- described in MAP. From this point on, the old print.map might be
+ described in MAP. From this point on, the old pfile->print.map might be
pointing to freed memory, and so must not be dereferenced. */
static void
cb_file_change (pfile, map)
- cpp_reader *pfile ATTRIBUTE_UNUSED;
+ cpp_reader *pfile;
const struct line_map *map;
{
const char *flags = "";
/* First time? */
- if (print.map == NULL)
+ if (pfile->print.map == NULL)
{
/* Avoid printing foo.i when the main file is foo.c. */
- if (!options->preprocessed)
- print_line (map, map->from_line, flags);
+ if (!CPP_OPTION (pfile, preprocessed))
+ print_line (pfile, map, map->from_line, flags);
}
else
{
/* Bring current file to correct line when entering a new file. */
if (map->reason == LC_ENTER)
- maybe_print_line (map - 1, map->from_line - 1);
+ maybe_print_line (pfile, map - 1, map->from_line - 1);
if (map->reason == LC_ENTER)
flags = " 1";
else if (map->reason == LC_LEAVE)
flags = " 2";
- print_line (map, map->from_line, flags);
+ print_line (pfile, map, map->from_line, flags);
}
- print.map = map;
+ pfile->print.map = map;
}
/* Copy a #pragma directive to the preprocessed output. */
cpp_reader *pfile;
unsigned int line;
{
- maybe_print_line (print.map, line);
- fputs ("#pragma ", print.outf);
- cpp_output_line (pfile, print.outf);
- print.line++;
+ maybe_print_line (pfile, pfile->print.map, line);
+ fputs ("#pragma ", pfile->print.outf);
+ cpp_output_line (pfile, pfile->print.outf);
+ pfile->print.line++;
}
/* Dump out the hash table. */
{
if (node->type == NT_MACRO && !(node->flags & NODE_BUILTIN))
{
- fputs ("#define ", print.outf);
- fputs ((const char *) cpp_macro_definition (pfile, node), print.outf);
- putc ('\n', print.outf);
- print.line++;
+ fputs ("#define ", pfile->print.outf);
+ fputs ((const char *) cpp_macro_definition (pfile, node),
+ pfile->print.outf);
+ putc ('\n', pfile->print.outf);
+ pfile->print.line++;
}
return 1;
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