| Index: gperf/src/gperf/3.0.1/gperf-3.0.1-src/src/input.cc
|
| ===================================================================
|
| --- gperf/src/gperf/3.0.1/gperf-3.0.1-src/src/input.cc (revision 0)
|
| +++ gperf/src/gperf/3.0.1/gperf-3.0.1-src/src/input.cc (revision 0)
|
| @@ -0,0 +1,1000 @@
|
| +/* Input routines.
|
| + Copyright (C) 1989-1998, 2002-2003 Free Software Foundation, Inc.
|
| + Written by Douglas C. Schmidt <schmidt@ics.uci.edu>
|
| + and Bruno Haible <bruno@clisp.org>.
|
| +
|
| + This file is part of GNU GPERF.
|
| +
|
| + GNU GPERF is free software; you can redistribute it and/or modify
|
| + it under the terms of the GNU General Public License as published by
|
| + the Free Software Foundation; either version 2, or (at your option)
|
| + any later version.
|
| +
|
| + GNU GPERF is distributed in the hope that it will be useful,
|
| + but WITHOUT ANY WARRANTY; without even the implied warranty of
|
| + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
| + GNU General Public License for more details.
|
| +
|
| + You should have received a copy of the GNU General Public License
|
| + along with this program; see the file COPYING.
|
| + If not, write to the Free Software Foundation, Inc.,
|
| + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
|
| +
|
| +/* Specification. */
|
| +#include "input.h"
|
| +
|
| +#include <stdio.h>
|
| +#include <stdlib.h> /* declares exit() */
|
| +#include <string.h> /* declares strncpy(), strchr() */
|
| +#include <limits.h> /* defines UCHAR_MAX etc. */
|
| +#include "options.h"
|
| +#include "getline.h"
|
| +
|
| +Input::Input (FILE *stream, Keyword_Factory *keyword_factory)
|
| + : _stream (stream), _factory (keyword_factory)
|
| +{
|
| +}
|
| +
|
| +/* Returns a pretty representation of the input file name, for error and
|
| + warning messages. */
|
| +static const char *
|
| +pretty_input_file_name ()
|
| +{
|
| + if (option.get_input_file_name ())
|
| + return option.get_input_file_name ();
|
| + else
|
| + return "(standard input)";
|
| +}
|
| +
|
| +/* Returns true if the given line contains a "%DECL" declaration. */
|
| +static bool
|
| +is_declaration (const char *line, const char *line_end, unsigned int lineno,
|
| + const char *decl)
|
| +{
|
| + /* Skip '%'. */
|
| + line++;
|
| +
|
| + /* Skip DECL. */
|
| + for (const char *d = decl; *d; d++)
|
| + {
|
| + if (!(line < line_end))
|
| + return false;
|
| + if (!(*line == *d || (*d == '-' && *line == '_')))
|
| + return false;
|
| + line++;
|
| + }
|
| + if (line < line_end
|
| + && ((*line >= 'A' && *line <= 'Z')
|
| + || (*line >= 'a' && *line <= 'z')
|
| + || *line == '-' || *line == '_'))
|
| + return false;
|
| +
|
| + /* OK, found DECL. */
|
| +
|
| + /* Skip whitespace. */
|
| + while (line < line_end && (*line == ' ' || *line == '\t'))
|
| + line++;
|
| +
|
| + /* Expect end of line. */
|
| + if (line < line_end && *line != '\n')
|
| + {
|
| + fprintf (stderr, "%s:%u: junk after declaration\n",
|
| + pretty_input_file_name (), lineno);
|
| + exit (1);
|
| + }
|
| +
|
| + return true;
|
| +}
|
| +
|
| +/* Tests if the given line contains a "%DECL=ARG" declaration.
|
| + If yes, it sets *ARGP to the argument, and returns true.
|
| + Otherwise, it returns false. */
|
| +static bool
|
| +is_declaration_with_arg (const char *line, const char *line_end,
|
| + unsigned int lineno,
|
| + const char *decl, char **argp)
|
| +{
|
| + /* Skip '%'. */
|
| + line++;
|
| +
|
| + /* Skip DECL. */
|
| + for (const char *d = decl; *d; d++)
|
| + {
|
| + if (!(line < line_end))
|
| + return false;
|
| + if (!(*line == *d || (*d == '-' && *line == '_')))
|
| + return false;
|
| + line++;
|
| + }
|
| + if (line < line_end
|
| + && ((*line >= 'A' && *line <= 'Z')
|
| + || (*line >= 'a' && *line <= 'z')
|
| + || *line == '-' || *line == '_'))
|
| + return false;
|
| +
|
| + /* OK, found DECL. */
|
| +
|
| + /* Skip '='. */
|
| + if (!(line < line_end && *line == '='))
|
| + {
|
| + fprintf (stderr, "%s:%u: missing argument in %%%s=ARG declaration.\n",
|
| + pretty_input_file_name (), lineno, decl);
|
| + exit (1);
|
| + }
|
| + line++;
|
| +
|
| + /* The next word is the argument. */
|
| + char *arg = new char[line_end - line + 1];
|
| + char *p = arg;
|
| + while (line < line_end && !(*line == ' ' || *line == '\t' || *line == '\n'))
|
| + *p++ = *line++;
|
| + *p = '\0';
|
| +
|
| + /* Skip whitespace. */
|
| + while (line < line_end && (*line == ' ' || *line == '\t'))
|
| + line++;
|
| +
|
| + /* Expect end of line. */
|
| + if (line < line_end && *line != '\n')
|
| + {
|
| + fprintf (stderr, "%s:%u: junk after declaration\n",
|
| + pretty_input_file_name (), lineno);
|
| + exit (1);
|
| + }
|
| +
|
| + *argp = arg;
|
| + return true;
|
| +}
|
| +
|
| +/* Tests if the given line contains a "%define DECL ARG" declaration.
|
| + If yes, it sets *ARGP to the argument, and returns true.
|
| + Otherwise, it returns false. */
|
| +static bool
|
| +is_define_declaration (const char *line, const char *line_end,
|
| + unsigned int lineno,
|
| + const char *decl, char **argp)
|
| +{
|
| + /* Skip '%'. */
|
| + line++;
|
| +
|
| + /* Skip "define". */
|
| + {
|
| + for (const char *d = "define"; *d; d++)
|
| + {
|
| + if (!(line < line_end))
|
| + return false;
|
| + if (!(*line == *d))
|
| + return false;
|
| + line++;
|
| + }
|
| + if (!(line < line_end && (*line == ' ' || *line == '\t')))
|
| + return false;
|
| + }
|
| +
|
| + /* Skip whitespace. */
|
| + while (line < line_end && (*line == ' ' || *line == '\t'))
|
| + line++;
|
| +
|
| + /* Skip DECL. */
|
| + for (const char *d = decl; *d; d++)
|
| + {
|
| + if (!(line < line_end))
|
| + return false;
|
| + if (!(*line == *d || (*d == '-' && *line == '_')))
|
| + return false;
|
| + line++;
|
| + }
|
| + if (line < line_end
|
| + && ((*line >= 'A' && *line <= 'Z')
|
| + || (*line >= 'a' && *line <= 'z')
|
| + || *line == '-' || *line == '_'))
|
| + return false;
|
| +
|
| + /* OK, found DECL. */
|
| +
|
| + /* Skip whitespace. */
|
| + if (!(line < line_end && (*line == ' ' || *line == '\t')))
|
| + {
|
| + fprintf (stderr, "%s:%u:"
|
| + " missing argument in %%define %s ARG declaration.\n",
|
| + pretty_input_file_name (), lineno, decl);
|
| + exit (1);
|
| + }
|
| + do
|
| + line++;
|
| + while (line < line_end && (*line == ' ' || *line == '\t'));
|
| +
|
| + /* The next word is the argument. */
|
| + char *arg = new char[line_end - line + 1];
|
| + char *p = arg;
|
| + while (line < line_end && !(*line == ' ' || *line == '\t' || *line == '\n'))
|
| + *p++ = *line++;
|
| + *p = '\0';
|
| +
|
| + /* Skip whitespace. */
|
| + while (line < line_end && (*line == ' ' || *line == '\t'))
|
| + line++;
|
| +
|
| + /* Expect end of line. */
|
| + if (line < line_end && *line != '\n')
|
| + {
|
| + fprintf (stderr, "%s:%u: junk after declaration\n",
|
| + pretty_input_file_name (), lineno);
|
| + exit (1);
|
| + }
|
| +
|
| + *argp = arg;
|
| + return true;
|
| +}
|
| +
|
| +/* Reads the entire input file. */
|
| +void
|
| +Input::read_input ()
|
| +{
|
| + /* The input file has the following structure:
|
| + DECLARATIONS
|
| + %%
|
| + KEYWORDS
|
| + %%
|
| + ADDITIONAL_CODE
|
| + Since the DECLARATIONS and the ADDITIONAL_CODE sections are optional,
|
| + we have to read the entire file in the case there is only one %%
|
| + separator line, in order to determine whether the structure is
|
| + DECLARATIONS
|
| + %%
|
| + KEYWORDS
|
| + or
|
| + KEYWORDS
|
| + %%
|
| + ADDITIONAL_CODE
|
| + When the option -t is given or when the first section contains
|
| + declaration lines starting with %, we go for the first interpretation,
|
| + otherwise for the second interpretation. */
|
| +
|
| + char *input = NULL;
|
| + size_t input_size = 0;
|
| + int input_length = get_delim (&input, &input_size, EOF, _stream);
|
| + if (input_length < 0)
|
| + {
|
| + if (ferror (_stream))
|
| + fprintf (stderr, "%s: error while reading input file\n",
|
| + pretty_input_file_name ());
|
| + else
|
| + fprintf (stderr, "%s: The input file is empty!\n",
|
| + pretty_input_file_name ());
|
| + exit (1);
|
| + }
|
| +
|
| + /* We use input_end as a limit, in order to cope with NUL bytes in the
|
| + input. But note that one trailing NUL byte has been added after
|
| + input_end, for convenience. */
|
| + char *input_end = input + input_length;
|
| +
|
| + const char *declarations;
|
| + const char *declarations_end;
|
| + const char *keywords;
|
| + const char *keywords_end;
|
| + unsigned int keywords_lineno;
|
| +
|
| + /* Break up the input into the three sections. */
|
| + {
|
| + const char *separator[2] = { NULL, NULL };
|
| + unsigned int separator_lineno[2] = { 0, 0 };
|
| + int separators = 0;
|
| + {
|
| + unsigned int lineno = 1;
|
| + for (const char *p = input; p < input_end; )
|
| + {
|
| + if (p[0] == '%' && p[1] == '%')
|
| + {
|
| + separator[separators] = p;
|
| + separator_lineno[separators] = lineno;
|
| + if (++separators == 2)
|
| + break;
|
| + }
|
| + lineno++;
|
| + p = (const char *) memchr (p, '\n', input_end - p);
|
| + if (p != NULL)
|
| + p++;
|
| + else
|
| + p = input_end;
|
| + }
|
| + }
|
| +
|
| + bool has_declarations;
|
| + if (separators == 1)
|
| + {
|
| + if (option[TYPE])
|
| + has_declarations = true;
|
| + else
|
| + {
|
| + has_declarations = false;
|
| + for (const char *p = input; p < separator[0]; )
|
| + {
|
| + if (p[0] == '%')
|
| + {
|
| + has_declarations = true;
|
| + break;
|
| + }
|
| + p = (const char *) memchr (p, '\n', separator[0] - p);
|
| + if (p != NULL)
|
| + p++;
|
| + else
|
| + p = separator[0];
|
| + }
|
| + }
|
| + }
|
| + else
|
| + has_declarations = (separators > 0);
|
| +
|
| + if (has_declarations)
|
| + {
|
| + declarations = input;
|
| + declarations_end = separator[0];
|
| + /* Give a warning if the separator line is nonempty. */
|
| + bool nonempty_line = false;
|
| + const char *p;
|
| + for (p = declarations_end + 2; p < input_end; )
|
| + {
|
| + if (*p == '\n')
|
| + {
|
| + p++;
|
| + break;
|
| + }
|
| + if (!(*p == ' ' || *p == '\t'))
|
| + nonempty_line = true;
|
| + p++;
|
| + }
|
| + if (nonempty_line)
|
| + fprintf (stderr, "%s:%u: warning: junk after %%%% is ignored\n",
|
| + pretty_input_file_name (), separator_lineno[0]);
|
| + keywords = p;
|
| + keywords_lineno = separator_lineno[0] + 1;
|
| + }
|
| + else
|
| + {
|
| + declarations = NULL;
|
| + declarations_end = NULL;
|
| + keywords = input;
|
| + keywords_lineno = 1;
|
| + }
|
| +
|
| + if (separators > (has_declarations ? 1 : 0))
|
| + {
|
| + keywords_end = separator[separators-1];
|
| + _verbatim_code = separator[separators-1] + 2;
|
| + _verbatim_code_end = input_end;
|
| + _verbatim_code_lineno = separator_lineno[separators-1];
|
| + }
|
| + else
|
| + {
|
| + keywords_end = input_end;
|
| + _verbatim_code = NULL;
|
| + _verbatim_code_end = NULL;
|
| + _verbatim_code_lineno = 0;
|
| + }
|
| + }
|
| +
|
| + /* Parse the declarations section. */
|
| +
|
| + _verbatim_declarations = NULL;
|
| + _verbatim_declarations_end = NULL;
|
| + _verbatim_declarations_lineno = 0;
|
| + _struct_decl = NULL;
|
| + _struct_decl_lineno = 0;
|
| + _return_type = NULL;
|
| + _struct_tag = NULL;
|
| + {
|
| + unsigned int lineno = 1;
|
| + char *struct_decl = NULL;
|
| + unsigned int *struct_decl_linenos = NULL;
|
| + unsigned int struct_decl_linecount = 0;
|
| + for (const char *line = declarations; line < declarations_end; )
|
| + {
|
| + const char *line_end;
|
| + line_end = (const char *) memchr (line, '\n', declarations_end - line);
|
| + if (line_end != NULL)
|
| + line_end++;
|
| + else
|
| + line_end = declarations_end;
|
| +
|
| + if (*line == '%')
|
| + {
|
| + if (line[1] == '{')
|
| + {
|
| + /* Handle %{. */
|
| + if (_verbatim_declarations != NULL)
|
| + {
|
| + fprintf (stderr, "%s:%u:\n%s:%u:"
|
| + " only one %%{...%%} section is allowed\n",
|
| + pretty_input_file_name (),
|
| + _verbatim_declarations_lineno,
|
| + pretty_input_file_name (), lineno);
|
| + exit (1);
|
| + }
|
| + _verbatim_declarations = line + 2;
|
| + _verbatim_declarations_lineno = lineno;
|
| + }
|
| + else if (line[1] == '}')
|
| + {
|
| + /* Handle %}. */
|
| + if (_verbatim_declarations == NULL)
|
| + {
|
| + fprintf (stderr, "%s:%u:"
|
| + " %%} outside of %%{...%%} section\n",
|
| + pretty_input_file_name (), lineno);
|
| + exit (1);
|
| + }
|
| + if (_verbatim_declarations_end != NULL)
|
| + {
|
| + fprintf (stderr, "%s:%u:"
|
| + " %%{...%%} section already closed\n",
|
| + pretty_input_file_name (), lineno);
|
| + exit (1);
|
| + }
|
| + _verbatim_declarations_end = line;
|
| + /* Give a warning if the rest of the line is nonempty. */
|
| + bool nonempty_line = false;
|
| + const char *q;
|
| + for (q = line + 2; q < line_end; q++)
|
| + {
|
| + if (*q == '\n')
|
| + {
|
| + q++;
|
| + break;
|
| + }
|
| + if (!(*q == ' ' || *q == '\t'))
|
| + nonempty_line = true;
|
| + }
|
| + if (nonempty_line)
|
| + fprintf (stderr, "%s:%u:"
|
| + " warning: junk after %%} is ignored\n",
|
| + pretty_input_file_name (), lineno);
|
| + }
|
| + else if (_verbatim_declarations != NULL
|
| + && _verbatim_declarations_end == NULL)
|
| + {
|
| + fprintf (stderr, "%s:%u:"
|
| + " warning: %% directives are ignored"
|
| + " inside the %%{...%%} section\n",
|
| + pretty_input_file_name (), lineno);
|
| + }
|
| + else
|
| + {
|
| + char *arg;
|
| +
|
| + if (is_declaration_with_arg (line, line_end, lineno,
|
| + "delimiters", &arg))
|
| + option.set_delimiters (arg);
|
| + else
|
| +
|
| + if (is_declaration (line, line_end, lineno, "struct-type"))
|
| + option.set (TYPE);
|
| + else
|
| +
|
| + if (is_declaration (line, line_end, lineno, "ignore-case"))
|
| + option.set (UPPERLOWER);
|
| + else
|
| +
|
| + if (is_declaration_with_arg (line, line_end, lineno,
|
| + "language", &arg))
|
| + option.set_language (arg);
|
| + else
|
| +
|
| + if (is_define_declaration (line, line_end, lineno,
|
| + "slot-name", &arg))
|
| + option.set_slot_name (arg);
|
| + else
|
| +
|
| + if (is_define_declaration (line, line_end, lineno,
|
| + "initializer-suffix", &arg))
|
| + option.set_initializer_suffix (arg);
|
| + else
|
| +
|
| + if (is_define_declaration (line, line_end, lineno,
|
| + "hash-function-name", &arg))
|
| + option.set_hash_name (arg);
|
| + else
|
| +
|
| + if (is_define_declaration (line, line_end, lineno,
|
| + "lookup-function-name", &arg))
|
| + option.set_function_name (arg);
|
| + else
|
| +
|
| + if (is_define_declaration (line, line_end, lineno,
|
| + "class-name", &arg))
|
| + option.set_class_name (arg);
|
| + else
|
| +
|
| + if (is_declaration (line, line_end, lineno, "7bit"))
|
| + option.set (SEVENBIT);
|
| + else
|
| +
|
| + if (is_declaration (line, line_end, lineno, "compare-lengths"))
|
| + option.set (LENTABLE);
|
| + else
|
| +
|
| + if (is_declaration (line, line_end, lineno, "compare-strncmp"))
|
| + option.set (COMP);
|
| + else
|
| +
|
| + if (is_declaration (line, line_end, lineno, "readonly-tables"))
|
| + option.set (CONST);
|
| + else
|
| +
|
| + if (is_declaration (line, line_end, lineno, "enum"))
|
| + option.set (ENUM);
|
| + else
|
| +
|
| + if (is_declaration (line, line_end, lineno, "includes"))
|
| + option.set (INCLUDE);
|
| + else
|
| +
|
| + if (is_declaration (line, line_end, lineno, "global-table"))
|
| + option.set (GLOBAL);
|
| + else
|
| +
|
| + if (is_declaration (line, line_end, lineno, "pic"))
|
| + option.set (SHAREDLIB);
|
| + else
|
| +
|
| + if (is_define_declaration (line, line_end, lineno,
|
| + "string-pool-name", &arg))
|
| + option.set_stringpool_name (arg);
|
| + else
|
| +
|
| + if (is_declaration (line, line_end, lineno, "null-strings"))
|
| + option.set (NULLSTRINGS);
|
| + else
|
| +
|
| + if (is_define_declaration (line, line_end, lineno,
|
| + "word-array-name", &arg))
|
| + option.set_wordlist_name (arg);
|
| + else
|
| +
|
| + if (is_declaration_with_arg (line, line_end, lineno,
|
| + "switch", &arg))
|
| + {
|
| + option.set_total_switches (atoi (arg));
|
| + if (option.get_total_switches () <= 0)
|
| + {
|
| + fprintf (stderr, "%s:%u: number of switches %s"
|
| + " must be a positive number\n",
|
| + pretty_input_file_name (), lineno, arg);
|
| + exit (1);
|
| + }
|
| + }
|
| + else
|
| +
|
| + if (is_declaration (line, line_end, lineno, "omit-struct-type"))
|
| + option.set (NOTYPE);
|
| + else
|
| +
|
| + {
|
| + fprintf (stderr, "%s:%u: unrecognized %% directive\n",
|
| + pretty_input_file_name (), lineno);
|
| + exit (1);
|
| + }
|
| + }
|
| + }
|
| + else if (!(_verbatim_declarations != NULL
|
| + && _verbatim_declarations_end == NULL))
|
| + {
|
| + /* Append the line to struct_decl. */
|
| + size_t old_len = (struct_decl ? strlen (struct_decl) : 0);
|
| + size_t line_len = line_end - line;
|
| + size_t new_len = old_len + line_len + 1;
|
| + char *new_struct_decl = new char[new_len];
|
| + if (old_len > 0)
|
| + memcpy (new_struct_decl, struct_decl, old_len);
|
| + memcpy (new_struct_decl + old_len, line, line_len);
|
| + new_struct_decl[old_len + line_len] = '\0';
|
| + if (struct_decl)
|
| + delete[] struct_decl;
|
| + struct_decl = new_struct_decl;
|
| + /* Append the lineno to struct_decl_linenos. */
|
| + unsigned int *new_struct_decl_linenos =
|
| + new unsigned int[struct_decl_linecount + 1];
|
| + if (struct_decl_linecount > 0)
|
| + memcpy (new_struct_decl_linenos, struct_decl_linenos,
|
| + struct_decl_linecount * sizeof (unsigned int));
|
| + new_struct_decl_linenos[struct_decl_linecount] = lineno;
|
| + if (struct_decl_linenos)
|
| + delete[] struct_decl_linenos;
|
| + struct_decl_linenos = new_struct_decl_linenos;
|
| + /* Increment struct_decl_linecount. */
|
| + struct_decl_linecount++;
|
| + }
|
| + lineno++;
|
| + line = line_end;
|
| + }
|
| + if (_verbatim_declarations != NULL && _verbatim_declarations_end == NULL)
|
| + {
|
| + fprintf (stderr, "%s:%u: unterminated %%{ section\n",
|
| + pretty_input_file_name (), _verbatim_declarations_lineno);
|
| + exit (1);
|
| + }
|
| +
|
| + /* Determine _struct_decl, _return_type, _struct_tag. */
|
| + if (option[TYPE])
|
| + {
|
| + if (struct_decl)
|
| + {
|
| + /* Drop leading whitespace and comments. */
|
| + {
|
| + char *p = struct_decl;
|
| + unsigned int *l = struct_decl_linenos;
|
| + for (;;)
|
| + {
|
| + if (p[0] == ' ' || p[0] == '\t')
|
| + {
|
| + p++;
|
| + continue;
|
| + }
|
| + if (p[0] == '\n')
|
| + {
|
| + l++;
|
| + p++;
|
| + continue;
|
| + }
|
| + if (p[0] == '/')
|
| + {
|
| + if (p[1] == '*')
|
| + {
|
| + /* Skip over ANSI C style comment. */
|
| + p += 2;
|
| + while (p[0] != '\0')
|
| + {
|
| + if (p[0] == '*' && p[1] == '/')
|
| + {
|
| + p += 2;
|
| + break;
|
| + }
|
| + if (p[0] == '\n')
|
| + l++;
|
| + p++;
|
| + }
|
| + continue;
|
| + }
|
| + if (p[1] == '/')
|
| + {
|
| + /* Skip over ISO C99 or C++ style comment. */
|
| + p += 2;
|
| + while (p[0] != '\0' && p[0] != '\n')
|
| + p++;
|
| + if (p[0] == '\n')
|
| + {
|
| + l++;
|
| + p++;
|
| + }
|
| + continue;
|
| + }
|
| + }
|
| + break;
|
| + }
|
| + if (p != struct_decl)
|
| + {
|
| + size_t len = strlen (p);
|
| + char *new_struct_decl = new char[len + 1];
|
| + memcpy (new_struct_decl, p, len + 1);
|
| + delete[] struct_decl;
|
| + struct_decl = new_struct_decl;
|
| + }
|
| + _struct_decl_lineno = *l;
|
| + }
|
| + /* Drop trailing whitespace. */
|
| + for (char *p = struct_decl + strlen (struct_decl); p > struct_decl;)
|
| + if (p[-1] == '\n' || p[-1] == ' ' || p[-1] == '\t')
|
| + *--p = '\0';
|
| + else
|
| + break;
|
| + }
|
| + if (struct_decl == NULL || struct_decl[0] == '\0')
|
| + {
|
| + fprintf (stderr, "%s: missing struct declaration"
|
| + " for option --struct-type\n",
|
| + pretty_input_file_name ());
|
| + exit (1);
|
| + }
|
| + {
|
| + /* Ensure trailing semicolon. */
|
| + size_t old_len = strlen (struct_decl);
|
| + if (struct_decl[old_len - 1] != ';')
|
| + {
|
| + char *new_struct_decl = new char[old_len + 2];
|
| + memcpy (new_struct_decl, struct_decl, old_len);
|
| + new_struct_decl[old_len] = ';';
|
| + new_struct_decl[old_len + 1] = '\0';
|
| + delete[] struct_decl;
|
| + struct_decl = new_struct_decl;
|
| + }
|
| + }
|
| + /* Set _struct_decl to the entire declaration. */
|
| + _struct_decl = struct_decl;
|
| + /* Set _struct_tag to the naked "struct something". */
|
| + const char *p;
|
| + for (p = struct_decl; *p && *p != '{' && *p != ';' && *p != '\n'; p++)
|
| + ;
|
| + for (; p > struct_decl;)
|
| + if (p[-1] == '\n' || p[-1] == ' ' || p[-1] == '\t')
|
| + --p;
|
| + else
|
| + break;
|
| + size_t struct_tag_length = p - struct_decl;
|
| + char *struct_tag = new char[struct_tag_length + 1];
|
| + memcpy (struct_tag, struct_decl, struct_tag_length);
|
| + struct_tag[struct_tag_length] = '\0';
|
| + _struct_tag = struct_tag;
|
| + /* The return type of the lookup function is "struct something *".
|
| + No "const" here, because if !option[CONST], some user code might
|
| + want to modify the structure. */
|
| + char *return_type = new char[struct_tag_length + 3];
|
| + memcpy (return_type, struct_decl, struct_tag_length);
|
| + return_type[struct_tag_length] = ' ';
|
| + return_type[struct_tag_length + 1] = '*';
|
| + return_type[struct_tag_length + 2] = '\0';
|
| + _return_type = return_type;
|
| + }
|
| +
|
| + if (struct_decl_linenos)
|
| + delete[] struct_decl_linenos;
|
| + }
|
| +
|
| + /* Parse the keywords section. */
|
| + {
|
| + Keyword_List **list_tail = &_head;
|
| + const char *delimiters = option.get_delimiters ();
|
| + unsigned int lineno = keywords_lineno;
|
| + bool charset_dependent = false;
|
| + for (const char *line = keywords; line < keywords_end; )
|
| + {
|
| + const char *line_end;
|
| + line_end = (const char *) memchr (line, '\n', keywords_end - line);
|
| + if (line_end != NULL)
|
| + line_end++;
|
| + else
|
| + line_end = keywords_end;
|
| +
|
| + if (line[0] == '#')
|
| + ; /* Comment line. */
|
| + else if (line[0] == '%')
|
| + {
|
| + fprintf (stderr, "%s:%u:"
|
| + " declarations are not allowed in the keywords section.\n"
|
| + "To declare a keyword starting with %%, enclose it in"
|
| + " double-quotes.\n",
|
| + pretty_input_file_name (), lineno);
|
| + exit (1);
|
| + }
|
| + else
|
| + {
|
| + /* An input line carrying a keyword. */
|
| + const char *keyword;
|
| + size_t keyword_length;
|
| + const char *rest;
|
| +
|
| + if (line[0] == '"')
|
| + {
|
| + /* Parse a string in ANSI C syntax. */
|
| + char *kp = new char[line_end-line];
|
| + keyword = kp;
|
| + const char *lp = line + 1;
|
| +
|
| + for (;;)
|
| + {
|
| + if (lp == line_end)
|
| + {
|
| + fprintf (stderr, "%s:%u: unterminated string\n",
|
| + pretty_input_file_name (), lineno);
|
| + exit (1);
|
| + }
|
| +
|
| + char c = *lp;
|
| + if (c == '\\')
|
| + {
|
| + c = *++lp;
|
| + switch (c)
|
| + {
|
| + case '0': case '1': case '2': case '3':
|
| + case '4': case '5': case '6': case '7':
|
| + {
|
| + int code = 0;
|
| + int count = 0;
|
| + while (count < 3 && *lp >= '0' && *lp <= '7')
|
| + {
|
| + code = (code << 3) + (*lp - '0');
|
| + lp++;
|
| + count++;
|
| + }
|
| + if (code > UCHAR_MAX)
|
| + fprintf (stderr,
|
| + "%s:%u: octal escape out of range\n",
|
| + pretty_input_file_name (), lineno);
|
| + *kp = static_cast<char>(code);
|
| + break;
|
| + }
|
| + case 'x':
|
| + {
|
| + int code = 0;
|
| + int count = 0;
|
| + lp++;
|
| + while ((*lp >= '0' && *lp <= '9')
|
| + || (*lp >= 'A' && *lp <= 'F')
|
| + || (*lp >= 'a' && *lp <= 'f'))
|
| + {
|
| + code = (code << 4)
|
| + + (*lp >= 'A' && *lp <= 'F'
|
| + ? *lp - 'A' + 10 :
|
| + *lp >= 'a' && *lp <= 'f'
|
| + ? *lp - 'a' + 10 :
|
| + *lp - '0');
|
| + lp++;
|
| + count++;
|
| + }
|
| + if (count == 0)
|
| + fprintf (stderr, "%s:%u: hexadecimal escape"
|
| + " without any hex digits\n",
|
| + pretty_input_file_name (), lineno);
|
| + if (code > UCHAR_MAX)
|
| + fprintf (stderr, "%s:%u: hexadecimal escape"
|
| + " out of range\n",
|
| + pretty_input_file_name (), lineno);
|
| + *kp = static_cast<char>(code);
|
| + break;
|
| + }
|
| + case '\\': case '\'': case '"':
|
| + *kp = c;
|
| + lp++;
|
| + charset_dependent = true;
|
| + break;
|
| + case 'n':
|
| + *kp = '\n';
|
| + lp++;
|
| + charset_dependent = true;
|
| + break;
|
| + case 't':
|
| + *kp = '\t';
|
| + lp++;
|
| + charset_dependent = true;
|
| + break;
|
| + case 'r':
|
| + *kp = '\r';
|
| + lp++;
|
| + charset_dependent = true;
|
| + break;
|
| + case 'f':
|
| + *kp = '\f';
|
| + lp++;
|
| + charset_dependent = true;
|
| + break;
|
| + case 'b':
|
| + *kp = '\b';
|
| + lp++;
|
| + charset_dependent = true;
|
| + break;
|
| + case 'a':
|
| + *kp = '\a';
|
| + lp++;
|
| + charset_dependent = true;
|
| + break;
|
| + case 'v':
|
| + *kp = '\v';
|
| + lp++;
|
| + charset_dependent = true;
|
| + break;
|
| + default:
|
| + fprintf (stderr, "%s:%u: invalid escape sequence"
|
| + " in string\n",
|
| + pretty_input_file_name (), lineno);
|
| + exit (1);
|
| + }
|
| + }
|
| + else if (c == '"')
|
| + break;
|
| + else
|
| + {
|
| + *kp = c;
|
| + lp++;
|
| + charset_dependent = true;
|
| + }
|
| + kp++;
|
| + }
|
| + lp++;
|
| + if (lp < line_end && *lp != '\n')
|
| + {
|
| + if (strchr (delimiters, *lp) == NULL)
|
| + {
|
| + fprintf (stderr, "%s:%u: string not followed"
|
| + " by delimiter\n",
|
| + pretty_input_file_name (), lineno);
|
| + exit (1);
|
| + }
|
| + lp++;
|
| + }
|
| + keyword_length = kp - keyword;
|
| + if (option[TYPE])
|
| + {
|
| + char *line_rest = new char[line_end - lp + 1];
|
| + memcpy (line_rest, lp, line_end - lp);
|
| + line_rest[line_end - lp -
|
| + (line_end > lp && line_end[-1] == '\n' ? 1 : 0)]
|
| + = '\0';
|
| + rest = line_rest;
|
| + }
|
| + else
|
| + rest = empty_string;
|
| + }
|
| + else
|
| + {
|
| + /* Not a string. Look for the delimiter. */
|
| + const char *lp = line;
|
| + for (;;)
|
| + {
|
| + if (!(lp < line_end && *lp != '\n'))
|
| + {
|
| + keyword = line;
|
| + keyword_length = lp - line;
|
| + rest = empty_string;
|
| + break;
|
| + }
|
| + if (strchr (delimiters, *lp) != NULL)
|
| + {
|
| + keyword = line;
|
| + keyword_length = lp - line;
|
| + lp++;
|
| + if (option[TYPE])
|
| + {
|
| + char *line_rest = new char[line_end - lp + 1];
|
| + memcpy (line_rest, lp, line_end - lp);
|
| + line_rest[line_end - lp -
|
| + (line_end > lp && line_end[-1] == '\n'
|
| + ? 1 : 0)]
|
| + = '\0';
|
| + rest = line_rest;
|
| + }
|
| + else
|
| + rest = empty_string;
|
| + break;
|
| + }
|
| + lp++;
|
| + }
|
| + if (keyword_length > 0)
|
| + charset_dependent = true;
|
| + }
|
| +
|
| + /* Allocate Keyword and add it to the list. */
|
| + Keyword *new_kw = _factory->create_keyword (keyword, keyword_length,
|
| + rest);
|
| + new_kw->_lineno = lineno;
|
| + *list_tail = new Keyword_List (new_kw);
|
| + list_tail = &(*list_tail)->rest();
|
| + }
|
| +
|
| + lineno++;
|
| + line = line_end;
|
| + }
|
| + *list_tail = NULL;
|
| +
|
| + if (_head == NULL)
|
| + {
|
| + fprintf (stderr, "%s: No keywords in input file!\n",
|
| + pretty_input_file_name ());
|
| + exit (1);
|
| + }
|
| +
|
| + _charset_dependent = charset_dependent;
|
| + }
|
| +
|
| + /* To be freed in the destructor. */
|
| + _input = input;
|
| + _input_end = input_end;
|
| +}
|
| +
|
| +Input::~Input ()
|
| +{
|
| + /* Free allocated memory. */
|
| + delete[] const_cast<char*>(_return_type);
|
| + delete[] const_cast<char*>(_struct_tag);
|
| + delete[] const_cast<char*>(_struct_decl);
|
| + delete[] _input;
|
| +}
|
|
|
| Property changes on: gperf\src\gperf\3.0.1\gperf-3.0.1-src\src\input.cc
|
| ___________________________________________________________________
|
| Added: svn:eol-style
|
| + LF
|
|
|
|
|