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author | Filippos Karapetis | 2009-02-18 11:03:44 +0000 |
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committer | Filippos Karapetis | 2009-02-18 11:03:44 +0000 |
commit | 1db017a6c22137ba26276a75a3901a0f99ccedca (patch) | |
tree | cd1d715c6d33b9d85d175d4d8dc3a384aa4aa257 /engines/sci/engine/cfsml.pl | |
parent | fa59ce0d9f6282e08d52209d3afad3cc9f702ebb (diff) | |
download | scummvm-rg350-1db017a6c22137ba26276a75a3901a0f99ccedca.tar.gz scummvm-rg350-1db017a6c22137ba26276a75a3901a0f99ccedca.tar.bz2 scummvm-rg350-1db017a6c22137ba26276a75a3901a0f99ccedca.zip |
Removed the cfsml.pl tool from the SCI engine (eventually, it should go to /tools, together with the other ones...)
svn-id: r38467
Diffstat (limited to 'engines/sci/engine/cfsml.pl')
-rw-r--r-- | engines/sci/engine/cfsml.pl | 1183 |
1 files changed, 0 insertions, 1183 deletions
diff --git a/engines/sci/engine/cfsml.pl b/engines/sci/engine/cfsml.pl deleted file mode 100644 index 982a536b70..0000000000 --- a/engines/sci/engine/cfsml.pl +++ /dev/null @@ -1,1183 +0,0 @@ -#! /usr/bin/env perl -# The C File Storage Meta Language "reference" implementation -# This implementation is supposed to conform to version -$version = "0.8.2"; -# of the spec. Please contact the maintainer if it doesn't. -# -# cfsml.pl Copyright (C) 1999, 2000, 2001 Christoph Reichenbach -# -# -# This program may be modified and copied freely according to the terms of -# the GNU general public license (GPL), as long as the above copyright -# notice and the licensing information contained herein are preserved. -# -# Please refer to www.gnu.org for licensing details. -# -# This work is provided AS IS, without warranty of any kind, expressed or -# implied, including but not limited to the warranties of merchantibility, -# noninfringement, and fitness for a specific purpose. The author will not -# be held liable for any damage caused by this work or derivatives of it. -# -# By using this source code, you agree to the licensing terms as stated -# above. -# -# -# Please contact the maintainer for bug reports or inquiries. -# -# Current Maintainer: -# -# Christoph Reichenbach (CJR) [jameson@linuxgames.com] -# -# -# Warning: This is still a "bit" messy. Sorry for that. -# - -#$debug = 1; - -$write_lines = "true"; -$source_file = "CFSML source file"; -$type_integer = "integer"; -$type_string = "string"; -$type_record = "RECORD"; -$type_pointer = "POINTER"; -$type_abspointer = "ABSPOINTER"; - -%types; # Contains all type bindings -%records; # Contains all record bindings - -$mode = undef; -while ($op = shift @ARGV) { - if ($mode eq undef) { - if ($op eq "-f") { - $mode = "fname"; - } elsif ($op eq "-l") { - $write_lines = undef; - } elsif ($op eq "-v") { - print "cfsml.pl, the CFSML code generator, version $version\n"; - print "This program is provided WITHOUT WARRANTY of any kind. It may be\n"; - print "copied and modified freely according to the terms of the GNU\n"; - print "General Public License.\n"; - exit(0); - } elsif ($op eq "-h") { - print "CFSML help:\n"; - print "Usage: cat source | cfsml.pl [-v] [-h] [-l] [-f <filename>] > dest\n"; - print " -h : help\n"; - print " -v : print version\n"; - print " -l : disable line number printing in dest file\n"; - print " -f : specify file name for line number printing\n"; - exit(0); - } else { - die "Unknown option '$op'\n"; - } - } elsif ($mode eq "fname") { - $source_file = $op; - $mode = 0; - } else { - die "Invalid internal state '$mode'\n"; - } -} - -sub write_line_pp -# write_line_pp(int line_nr, bool input_file?) -{ - my $line_nr = shift; - my $_file = shift; - my $filename = "cfsml.pl"; - - if (_file) { - $filename = $source_file; - } - - if ($write_lines) { - print "#line $line_nr \"$filename\"\n"; - } -} - -sub create_string_functions - { - $firstline = __LINE__; - $firstline += 4; - write_line_pp($firstline, 0); - print <<'EOF'; - -#include <stdarg.h> /* We need va_lists */ -#include "sci/include/sci_memory.h" - -#ifdef CFSML_DEBUG_MALLOC -/* -#define free(p) dbg_sci_free(p) -#define malloc(s) dbg_sci_malloc(s) -#define calloc(n, s) dbg_sci_calloc(n, s) -#define realloc(p, s) dbg_sci_realloc(p, s) -*/ -#define free dbg_sci_free -#define malloc dbg_sci_malloc -#define calloc dbg_sci_calloc -#define realloc dbg_sci_realloc -#endif - -static void -_cfsml_error(const char *fmt, ...) -{ - va_list argp; - - fprintf(stderr, "Error: "); - va_start(argp, fmt); - vfprintf(stderr, fmt, argp); - va_end(argp); - -} - - -static struct _cfsml_pointer_refstruct { - struct _cfsml_pointer_refstruct *next; - void *ptr; -} *_cfsml_pointer_references = NULL; - -static struct _cfsml_pointer_refstruct **_cfsml_pointer_references_current = &_cfsml_pointer_references; - -static char *_cfsml_last_value_retrieved = NULL; -static char *_cfsml_last_identifier_retrieved = NULL; - -static void -_cfsml_free_pointer_references_recursively(struct _cfsml_pointer_refstruct *refs, int free_pointers) -{ - if (!refs) - return; - #ifdef CFSML_DEBUG_MALLOC - SCI_MEMTEST; - #endif - - _cfsml_free_pointer_references_recursively(refs->next, free_pointers); - #ifdef CFSML_DEBUG_MALLOC - SCI_MEMTEST; - - fprintf(stderr,"Freeing ptrref %p [%p] %s\n", refs->ptr, refs, free_pointers? - "ALL": "cleanup only"); - #endif - - if (free_pointers) - free(refs->ptr); - - #ifdef CFSML_DEBUG_MALLOC - SCI_MEMTEST; - #endif - free(refs); - #ifdef CFSML_DEBUG_MALLOC - SCI_MEMTEST; - #endif -} - -static void -_cfsml_free_pointer_references(struct _cfsml_pointer_refstruct **meta_ref, int free_pointers) -{ - _cfsml_free_pointer_references_recursively(*meta_ref, free_pointers); - *meta_ref = NULL; - _cfsml_pointer_references_current = meta_ref; -} - -static struct _cfsml_pointer_refstruct ** -_cfsml_get_current_refpointer() -{ - return _cfsml_pointer_references_current; -} - -static void _cfsml_register_pointer(void *ptr) -{ - struct _cfsml_pointer_refstruct *newref = (struct _cfsml_pointer_refstruct*)sci_malloc(sizeof (struct _cfsml_pointer_refstruct)); - #ifdef CFSML_DEBUG_MALLOC - SCI_MEMTEST; - fprintf(stderr,"Registering ptrref %p [%p]\n", ptr, newref); - #endif - newref->next = *_cfsml_pointer_references_current; - newref->ptr = ptr; - *_cfsml_pointer_references_current = newref; -} - - -static char * -_cfsml_mangle_string(const char *s) -{ - const char *source = s; - char c; - char *target = (char *) sci_malloc(1 + strlen(s) * 2); /* We will probably need less than that */ - char *writer = target; - - while ((c = *source++)) { - - if (c < 32) { /* Special character? */ - *writer++ = '\\'; /* Escape... */ - c += ('a' - 1); - } else if (c == '\\' || c == '"') - *writer++ = '\\'; /* Escape, but do not change */ - *writer++ = c; - - } - *writer = 0; /* Terminate string */ - - return (char *) sci_realloc(target, strlen(target) + 1); -} - - -static char * -_cfsml_unmangle_string(const char *s, unsigned int length) -{ - char *target = (char *) sci_malloc(1 + strlen(s)); - char *writer = target; - const char *source = s; - const char *end = s + length; - char c; - - while ((source != end) && (c = *source++) && (c > 31)) { - if (c == '\\') { /* Escaped character? */ - c = *source++; - if ((c != '\\') && (c != '"')) /* Un-escape 0-31 only */ - c -= ('a' - 1); - } - *writer++ = c; - } - *writer = 0; /* Terminate string */ - - return (char *) sci_realloc(target, strlen(target) + 1); -} - - -static char * -_cfsml_get_identifier(FILE *fd, int *line, int *hiteof, int *assignment) -{ - int c; - int mem = 32; - int pos = 0; - int done = 0; - char *retval = (char *) sci_malloc(mem); - - if (_cfsml_last_identifier_retrieved) { - free(_cfsml_last_identifier_retrieved); - _cfsml_last_identifier_retrieved = NULL; - } - - while (isspace(c = fgetc(fd)) && (c != EOF)); - if (c == EOF) { - _cfsml_error("Unexpected end of file at line %d\n", *line); - free(retval); - *hiteof = 1; - return NULL; - } - - ungetc(c, fd); - - while (((c = fgetc(fd)) != EOF) && ((pos == 0) || (c != '\n')) && (c != '=')) { - - if (pos == mem - 1) /* Need more memory? */ - retval = (char *) sci_realloc(retval, mem *= 2); - - if (!isspace(c)) { - if (done) { - _cfsml_error("Single word identifier expected at line %d\n", *line); - free(retval); - return NULL; - } - retval[pos++] = c; - } else - if (pos != 0) - done = 1; /* Finished the variable name */ - else if (c == '\n') - ++(*line); - } - - if (c == EOF) { - _cfsml_error("Unexpected end of file at line %d\n", *line); - free(retval); - *hiteof = 1; - return NULL; - } - - if (c == '\n') { - ++(*line); - if (assignment) - *assignment = 0; - } else - if (assignment) - *assignment = 1; - - if (pos == 0) { - _cfsml_error("Missing identifier in assignment at line %d\n", *line); - free(retval); - return NULL; - } - - if (pos == mem - 1) /* Need more memory? */ - retval = (char *) sci_realloc(retval, mem += 1); - - retval[pos] = 0; /* Terminate string */ -EOF - -if ($debug) { - print " printf(\"identifier is '%s'\\n\", retval);\n"; -} - - $firstline = __LINE__; - $firstline += 4; - write_line_pp($firstline, 0); - print <<'EOF2'; - - return _cfsml_last_identifier_retrieved = retval; -} - - -static char * -_cfsml_get_value(FILE *fd, int *line, int *hiteof) -{ - int c; - int mem = 64; - int pos = 0; - char *retval = (char *) sci_malloc(mem); - - if (_cfsml_last_value_retrieved) { - free(_cfsml_last_value_retrieved); - _cfsml_last_value_retrieved = NULL; - } - - while (((c = fgetc(fd)) != EOF) && (c != '\n')) { - - if (pos == mem - 1) /* Need more memory? */ - retval = (char *) sci_realloc(retval, mem *= 2); - - if (pos || (!isspace(c))) - retval[pos++] = c; - - } - - while ((pos > 0) && (isspace(retval[pos - 1]))) - --pos; /* Strip trailing whitespace */ - - if (c == EOF) - *hiteof = 1; - - if (pos == 0) { - _cfsml_error("Missing value in assignment at line %d\n", *line); - free(retval); - return NULL; - } - - if (c == '\n') - ++(*line); - - if (pos == mem - 1) /* Need more memory? */ - retval = (char *) sci_realloc(retval, mem += 1); - - retval[pos] = 0; /* Terminate string */ -EOF2 - - if ($debug) { - print " printf(\"value is '%s'\\n\", retval);\n"; - } - - $firstline = __LINE__; - $firstline += 4; - write_line_pp($firstline, 0); - print <<'EOF3'; - return (_cfsml_last_value_retrieved = (char *) sci_realloc(retval, strlen(retval) + 1)); - /* Re-allocate; this value might be used for quite some while (if we are - ** restoring a string) - */ -} -EOF3 - } - - -# Call with $expression as a simple expression, like "tos + 1". -# Returns (in this case) ("tos", "-1"). -sub lvaluize - { - my @retval; -# print "//DEBUG: $expression ["; - my @tokens = split (/([+-\/\*])/, $expression); -# print join(",", @tokens); - $retval[0] = $tokens[0]; - - my $rightvalue = ""; - for ($i = 1; $tokens[$i]; $i++) { - - if ($tokens[$i] eq "+") { - $rightvalue .= "-"; - } elsif ($tokens[$i] eq "-") { - $rightvalue .= "+"; - } elsif ($tokens[$i] eq "/") { - $rightvalue .= "*"; - } elsif ($tokens[$i] eq "*") { - $rightvalue .= "/"; - } else { - $rightvalue .= $tokens[$i]; - } - } - - $retval[1] = $rightvalue; - -# print "] => ($retval[0];$retval[1])\n"; - - return @retval; - } - - - -sub create_declaration - { - $typename = $type; - $ctype = $types{$type}->{'ctype'}; - - if (not $types{$type}->{'external'}) { - $types{$type}{'writer'} = "_cfsml_write_" . $typename; - $types{$type}{'reader'} = "_cfsml_read_" . $typename; - write_line_pp(__LINE__, 0); - print "static void\n$types{$type}{'writer'}(FILE *fh, $ctype* save_struc);\n"; - print "static int\n$types{$type}{'reader'}(FILE *fh, $ctype* save_struc, const char *lastval,". - " int *line, int *hiteof);\n\n"; - }; - - } - -sub create_writer - { - $typename = $type; - $ctype = $types{$type}{'ctype'}; - - write_line_pp(__LINE__, 0); - print "static void\n_cfsml_write_$typename(FILE *fh, $ctype* save_struc)\n{\n"; - if ($types{$type}{'type'} eq $type_record) { - print " int min, max, i;\n\n"; - } - - if ($types{$type}{'type'} eq $type_integer) { - print " fprintf(fh, \"%li\", (long) *save_struc);\n"; - } - elsif ($types{$type}{'type'} eq $type_string) { - write_line_pp(__LINE__, 0); - print " if (!(*save_struc))\n"; - print " fprintf(fh, \"\\\\null\\\\\");\n"; - print " else {\n"; - print " char *token = _cfsml_mangle_string((const char *) *save_struc);\n"; - print " fprintf(fh, \"\\\"%s\\\"\", token);\n"; - print " free(token);\n"; - print " }\n"; - } - elsif ($types{$type}{'type'} eq $type_record) { - write_line_pp(__LINE__, 0); - print " fprintf(fh, \"{\\n\");\n"; - - for $n (@{$records{$type}}) { - - print " fprintf(fh, \"$n->{'name'} = \");\n"; - - if ($n->{'array'}) { # Check for arrays - - if ($n->{'array'} eq 'static' or $n->{'size'} * 2) { # fixed integer value? - print " min = max = $n->{'size'};\n"; - } - else { # No, a variable - print " min = max = save_struc->$n->{'size'};\n"; - } - - if ($n->{'maxwrite'}) { # A write limit? - print " if (save_struc->$n->{'maxwrite'} < min)\n"; - print " min = save_struc->$n->{'maxwrite'};\n"; - } - - if ($n->{'array'} eq 'dynamic') { - print " if (!save_struc->$n->{'name'})\n"; - print " min = max = 0; /* Don't write if it points to NULL */\n"; - } - - write_line_pp(__LINE__, 0); - print " fprintf(fh, \"[%d][\\n\", max);\n"; - print " for (i = 0; i < min; i++) {\n"; - print " $types{$n->{'type'}}{'writer'}"; - my $subscribstr = "[i]"; # To avoid perl interpolation problems - print "(fh, &(save_struc->$n->{'name'}$subscribstr));\n"; - print " fprintf(fh, \"\\n\");\n"; - print " }\n"; - print " fprintf(fh, \"]\");\n"; - - } elsif ($n->{'type'} eq $type_pointer) { # Relative pointer - - print " fprintf(fh, \"%d\", save_struc->$n->{'name'} - save_struc->$n->{'anchor'});" . - " /* Relative pointer */\n"; - - } elsif ($n->{'type'} eq $type_abspointer) { # Absolute pointer - - print " if (!save_struc->$n->{'name'})\n"; - print " fprintf(fh, \"\\\\null\\\\\");\n"; - print " else \n"; - print " $types{$n->{'reftype'}}{'writer'}"; - print "(fh, save_struc->$n->{'name'});\n"; - - } else { # Normal record entry - - print " $types{$n->{'type'}}{'writer'}"; - print "(fh, ($types{$n->{'type'}}{'ctype'}*) &(save_struc->$n->{'name'}));\n"; - - } - - print " fprintf(fh, \"\\n\");\n"; - } - - print " fprintf(fh, \"}\");\n"; - } - else { - print STDERR "Warning: Attempt to create_writer for invalid type '$types{$type}{'type'}'\n"; - } - print "}\n\n"; - - } - - -sub create_reader - { - $typename = $type; - $ctype = $types{$type}{'ctype'}; - - write_line_pp(__LINE__, 0); - print "static int\n_cfsml_read_$typename"; - print "(FILE *fh, $ctype* save_struc, const char *lastval, int *line, int *hiteof)\n{\n"; - - print " char *token;\n"; - if ($types{$type}{'type'} eq $type_record) { - print "int min, max, i;\n"; - } - my $reladdress_nr = 0; # Number of relative addresses needed - my $reladdress = 0; # Current relative address number - my $reladdress_resolver = ""; # Relative addresses are resolved after the main while block - - if ($types{$type}{'type'} eq $type_record) { - - foreach $n (@{$records{$type}}) { # Count relative addresses we need - if ($n->{'type'} eq $type_pointer) { - ++$reladdress_nr; - } - } - - if ($reladdress_nr) { # Allocate stack space for all relative addresses needed - print " int reladdresses[$reladdress_nr] = {0};\n"; - } - } - - if ($types{$type}{'type'} eq $type_integer) { - write_line_pp(__LINE__, 0); - print "\n *save_struc = strtol(lastval, &token, 0);\n"; - print " if ( (*save_struc == 0) && (token == lastval) ) {\n"; - print " _cfsml_error(\"strtol failed at line %d\\n\", *line);\n"; - print " return CFSML_FAILURE;\n"; - print " }\n"; - print " if (*token != 0) {\n"; - print " _cfsml_error(\"Non-integer encountered while parsing int value at line %d\\n\","; - print " *line);\n"; - print " return CFSML_FAILURE;\n"; - print " }\n"; - print " return CFSML_SUCCESS;\n"; - } elsif ($types{$type}{'type'} eq $type_string) { - write_line_pp(__LINE__, 0); - print "\n"; - print " if (strcmp(lastval, \"\\\\null\\\\\")) { /* null pointer? */\n"; - print " unsigned int length = strlen(lastval);\n"; - print " if (*lastval == '\"') { /* Quoted string? */\n"; - print " while (lastval[length] != '\"')\n"; - print " --length;\n\n"; - print " if (!length) { /* No matching double-quotes? */\n"; - print " _cfsml_error(\"Unbalanced quotes at line %d\\n\", *line);\n"; - print " return CFSML_FAILURE;\n"; - print " }\n\n"; - print " lastval++; /* ...and skip the opening quotes locally */\n"; - print " length--;\n"; - print " }\n"; - print " *save_struc = _cfsml_unmangle_string(lastval, length);\n"; - print " _cfsml_register_pointer(*save_struc);\n"; - print " return CFSML_SUCCESS;\n"; - print " } else {\n"; - print " *save_struc = NULL;\n"; - print " return CFSML_SUCCESS;\n"; - print " }\n"; - } elsif ($types{$type}{'type'} eq $type_record) { - write_line_pp(__LINE__, 0); - print " int assignment, closed, done;\n\n"; - print " if (strcmp(lastval, \"{\")) {\n"; - print " _cfsml_error(\"Reading record $type; expected opening braces in line %d, got \\\"%s\\\"\\n\","; - print "*line, lastval);\n"; - print " return CFSML_FAILURE;\n"; - print " };\n"; - print " closed = 0;\n"; - print " do {\n"; - print " const char *value;\n"; - print " token = _cfsml_get_identifier(fh, line, hiteof, &assignment);\n\n"; - print " if (!token) {\n"; - print " _cfsml_error(\"Expected token at line %d\\n\", *line);\n"; - print " return CFSML_FAILURE;\n"; - print " }\n"; - print " if (!assignment) {\n"; - print " if (!strcmp(token, \"}\")) \n"; - print " closed = 1;\n"; - print " else {\n"; - print " _cfsml_error(\"Expected assignment or closing braces in line %d\\n\", *line);\n"; - print " return CFSML_FAILURE;\n"; - print " }\n"; - print " } else {\n"; - print " value = \"\";\n"; - print " while (!value || !strcmp(value, \"\"))\n"; - print " value = _cfsml_get_value(fh, line, hiteof);\n"; - print " if (!value) {\n"; - print " _cfsml_error(\"Expected token at line %d\\n\", *line);\n"; - print " return CFSML_FAILURE;\n"; - print " }\n"; -# print " }\n"; - - - foreach $n (@{$records{$type}}) { # Now take care of all record elements - - my $type = $n->{'type'}; - my $reference = undef; - if ($type eq $type_abspointer) { - $reference = 1; - $type = $n->{'reftype'}; - } - my $name = $n->{'name'}; - my $reader = $types{$type}{'reader'}; - my $size = $n->{'size'}; - - print " if (!strcmp(token, \"$name\")) {\n"; - - if ($type eq $type_pointer) { # A relative pointer - - $reader = $types{'int'}{'reader'}; # Read relpointer as int - - write_line_pp(__LINE__, 0); - print " if ($reader(fh, &(reladdresses[$reladdress]), value, line, hiteof)) {\n"; - print " _cfsml_error(\"Expected token at line %d\\n\", *line);\n"; - print " return CFSML_FAILURE;\n"; - print " }\n"; - - # Make sure that the resulting variable is interpreted correctly - $reladdress_resolver .= " save_struc->$n->{'name'} =". - " save_struc->$n->{'anchor'} + reladdresses[$reladdress];\n"; - - ++$reladdress; # Prepare reladdress for next element - - } elsif ($n->{'array'}) { # Is it an array? - write_line_pp(__LINE__, 0); - print " if ((value[0] != '[') || (value[strlen(value) - 1] != '[')) {\n"; - # The value must end with [, since we're starting array data, and it must also - # begin with [, since this is either the only character in the line, or it starts - # the "amount of memory to allocate" block - print " _cfsml_error(\"Opening brackets expected at line %d\\n\", *line);\n"; - print " return CFSML_FAILURE;\n"; - print " }\n"; - - if ($n->{'array'} eq 'dynamic') { - write_line_pp(__LINE__, 0); - # We need to allocate the array first - print " /* Prepare to restore dynamic array */\n"; - # Read amount of memory to allocate - print " max = strtol(value + 1, NULL, 0);\n"; - print " if (max < 0) {\n"; - print " _cfsml_error(\"Invalid number of elements to allocate for dynamic "; - print "array '%s' at line %d\\n\", token, *line);\n"; - print " return CFSML_FAILURE;\n"; - print " }\n\n"; - - print " if (max) {\n"; - print " save_struc->$name = ($n->{'type'} *) sci_malloc(max * sizeof($type));\n"; - print "#ifdef SATISFY_PURIFY\n"; - print " memset(save_struc->$name, 0, max * sizeof($type));\n"; - print "#endif\n"; - print " _cfsml_register_pointer(save_struc->$name);\n"; - print " }\n"; - print " else\n"; - print " save_struc->$name = NULL;\n" - - } else { # static array - print " /* Prepare to restore static array */\n"; - print " max = $size;\n"; - } - - write_line_pp(__LINE__, 0); - print " done = i = 0;\n"; - print " do {\n"; - if ($type eq $type_record) { - print " if (!(value = _cfsml_get_value(fh, line, hiteof))) {\n"; - } else { - print " if (!(value = _cfsml_get_identifier(fh, line, hiteof, NULL))) {\n"; - } - write_line_pp(__LINE__, 0); - - print " _cfsml_error(\"Token expected at line %d\\n\", *line);\n"; - print " return 1;\n"; - print " }\n"; - print " if (strcmp(value, \"]\")) {\n"; - print " if (i == max) {\n"; - print " _cfsml_error(\"More elements than space available (%d) in '%s' at "; - print "line %d\\n\", max, token, *line);\n"; - print " return CFSML_FAILURE;\n"; - print " }\n"; - my $helper = "[i++]"; - print " if ($reader(fh, &(save_struc->$name$helper), value, line, hiteof)) {\n"; - print " _cfsml_error(\"Token expected by $reader() for $name$helper at line %d\\n\", *line);\n"; - print " return CFSML_FAILURE;\n"; - print " }\n"; - print " } else done = 1;\n"; - print " } while (!done);\n"; - - if ($n->{'array'} eq "dynamic") { - my @xpr = lvaluize($expression = $n->{'size'}); - print " save_struc->$xpr[0] = max $xpr[1]; /* Set array size accordingly */\n"; - } - - if ($n->{'maxwrite'}) { - my @xpr = lvaluize($expression = $n->{'maxwrite'}); - print " save_struc->$xpr[0] = i $xpr[1]; /* Set number of elements */\n"; - } - - } - elsif ($reference) { - write_line_pp(__LINE__, 0); - print " if (strcmp(value, \"\\\\null\\\\\")) { /* null pointer? */\n"; - print " save_struc->$name = sci_malloc(sizeof ($type));\n"; - print " _cfsml_register_pointer(save_struc->$name);\n"; - print " if ($reader(fh, save_struc->$name, value, line, hiteof)) {\n"; - print " _cfsml_error(\"Token expected by $reader() for $name at line %d\\n\", *line);\n"; - print " return CFSML_FAILURE;\n"; - print " }\n"; - print " } else save_struc->$name = NULL;\n"; - } - else { # It's a simple variable or a struct - write_line_pp(__LINE__, 0); - print " if ($reader(fh, ($types{$type}{'ctype'}*) &(save_struc->$name), value, line, hiteof)) {\n"; - print " _cfsml_error(\"Token expected by $reader() for $name at line %d\\n\", *line);\n"; - print " return CFSML_FAILURE;\n"; - print " }\n"; - } - print " } else\n"; - - } - write_line_pp(__LINE__, 0); - print " {\n"; - print " _cfsml_error(\"$type: Assignment to invalid identifier '%s' in line %d\\n\","; - print " token, *line);\n"; - print " return CFSML_FAILURE;\n"; - print " }\n"; - print " }\n"; - - print " } while (!closed); /* Until closing braces are hit */\n"; - - print $reladdress_resolver; # Resolves any relative addresses - - print " return CFSML_SUCCESS;\n"; - } else { - print STDERR "Warning: Attempt to create_reader for invalid type '$types{$type}{'type'}'\n"; - } - - print "}\n\n"; - } - -# Built-in types - -%types = ( - 'int' => { - 'type' => $type_integer, - 'ctype' => "int", - }, - - 'string' => { - 'type' => $type_string, - 'ctype' => "char *", - }, - ); - - - -sub create_function_block { - print "\n/* Auto-generated CFSML declaration and function block */\n\n"; - write_line_pp(__LINE__, 0); - print "#define CFSML_SUCCESS 0\n"; - print "#define CFSML_FAILURE 1\n\n"; - create_string_functions; - - foreach $n ( keys %types ) { - create_declaration($type = $n); - } - - foreach $n ( keys %types ) { - if (not $types{$n}->{'external'}) { - create_writer($type = $n); - create_reader($type = $n); - } - } - print "\n/* Auto-generated CFSML declaration and function block ends here */\n"; - print "/* Auto-generation performed by cfsml.pl $version */\n"; -} - - -# Gnerates code to read a data type -# Parameters: $type: Type to read -# $datap: Pointer to the write destination -# $fh: Existing filehandle of an open file to use -# $eofvar: Variable to store _cfsml_eof into -sub insert_reader_code { - print "/* Auto-generated CFSML data reader code */\n"; - write_line_pp(__LINE__, 0); - print " {\n"; - if (!$linecounter) { - write_line_pp(__LINE__, 0); - print " int _cfsml_line_ctr = 0;\n"; - $linecounter = '_cfsml_line_ctr'; - } - if ($atomic) { - write_line_pp(__LINE__, 0); - print " struct _cfsml_pointer_refstruct **_cfsml_myptrrefptr = _cfsml_get_current_refpointer();\n"; - } - write_line_pp(__LINE__, 0); - print " int _cfsml_eof = 0, _cfsml_error;\n"; - print " int dummy;\n"; - - if ($firsttoken) { - write_line_pp(__LINE__, 0); - print " const char *_cfsml_inp = $firsttoken;\n"; - } else { - write_line_pp(__LINE__, 0); - print " const char *_cfsml_inp =". - " _cfsml_get_identifier($fh, &($linecounter), &_cfsml_eof, &dummy);\n\n"; - } - - write_line_pp(__LINE__, 0); - print " _cfsml_error =". - " $types{$type}{'reader'}($fh, $datap, _cfsml_inp, &($linecounter), &_cfsml_eof);\n"; - - if ($eofvar) { - write_line_pp(__LINE__, 0); - print " $eofvar = _cfsml_error;\n"; - } - if ($atomic) { - write_line_pp(__LINE__, 0); - print " _cfsml_free_pointer_references(_cfsml_myptrrefptr, _cfsml_error);\n"; - } - write_line_pp(__LINE__, 0); - print " if (_cfsml_last_value_retrieved) {\n"; - print " free(_cfsml_last_value_retrieved);\n"; - print " _cfsml_last_value_retrieved = NULL;\n"; - print " }\n"; - print " if (_cfsml_last_identifier_retrieved) {\n"; - print " free(_cfsml_last_identifier_retrieved);\n"; - print " _cfsml_last_identifier_retrieved = NULL;\n"; - print " }\n"; - print " }\n"; - print "/* End of auto-generated CFSML data reader code */\n"; -} - -# Generates code to write a data type -# Parameters: $type: Type to write -# $datap: Pointer to the write destination -# $fh: Existing filehandle of an open file to use -sub insert_writer_code { - write_line_pp(__LINE__, 0); - print "/* Auto-generated CFSML data writer code */\n"; - print " $types{$type}{'writer'}($fh, $datap);\n"; - print " fprintf($fh, \"\\n\");\n"; - print "/* End of auto-generated CFSML data writer code */\n"; -} - - -################ -# Main program # -################ - -$parsing = 0; -$struct = undef; # Not working on a struct -$commentmode = undef; -$line = 0; - -while (<STDIN>) { - - $line++; - - if ($parsing) { - ($data) = split "#"; # Remove shell-style comments - @_ = ($data); - - s/\/\*.*\*\///g; # Remove C-style one-line comments - - ($data) = split "\/\/"; # Remove C++-style comments - @_ = ($data); - - if ($commentmode) { - - if (grep /\*\//, $_) { - ($empty, $_) = split /\*\//; - } else { - @_ = (); # Empty line - } - - } else { - if (grep /\/\*/, $_) { - $commentmode = 1; - ($_) = split /\/\*/; - } - } - - - # Now tokenize: - s/;//; - split /(\".*\"|[,\[\]\(\)\{\}])|\s+/; - - @items = @_; - - @tokens = (); - - $tokens_nr = 0; - for ($n = 0; $n < scalar @items; $n++) { # Get rid of all undefs - if ($_[$n]) { - $_ = $items[$n]; - s/\"//g; - $tokens[$tokens_nr++] = $_; - } - } - - # Now all tokens are in @tokens, and we have $tokens_nr of them. - -# print "//DEBUG: " . join ("|", @tokens) . "\n"; - - if ($tokens_nr) { - if ($tokens_nr == 2 && $tokens[0] eq "%END" && $tokens[1] eq "CFSML") { - - $struct && die "Record $struct needs closing braces in intput file (line $line)."; - - $parsing = 0; - create_function_block; - my $linep = $line + 1; - write_line_pp($linep, 1); - } elsif ($struct) { # Parsing struct - if ($tokens_nr == 1) { - if ($tokens[0] eq "}") { - $struct = undef; - } else { die "Invalid declaration of $token[0] in input file (line $line)\n";}; - } else { # Must be a member declaration - - my @structrecs = (@{$records{$struct}}); - my $newidx = (scalar @structrecs) or "0"; - my %member = (); - $member{'name'} = $tokens[1]; - $member{'type'} = $tokens[0]; - - if ($tokens_nr == 3 && $tokens[1] == "*") { - $tokens_nr = 2; - $member{'name'} = $tokens[2]; - $member{'reftype'} = $tokens[0]; - $member{'type'} = $type_abspointer; - } - - if ($tokens_nr == 4 and $tokens[0] eq $type_pointer) { # Relative pointer - - if (not $tokens[2] eq "RELATIVETO") { - die "Invalid relative pointer declaration in input file (line $line)\n"; - } - - $member{'anchor'} = $tokens[3]; # RelPointer anchor - - } else { # Non-pointer - - if (not $types{$tokens[0]}) { - die "Unknown type $tokens[0] used in input file (line $line)\n"; - } - - if ($tokens_nr > 2) { # Array - - if ($tokens[2] ne "[") { - die "Invalid token '$tokens[2]' in input file (line $line)\n"; - } - - $member{'array'} = "static"; - - if ($tokens[$tokens_nr - 1] ne "]") { - die "Array declaration incorrectly terminated in input file (line $line)\n"; - } - - $parsepos = 3; - - while ($parsepos < $tokens_nr) { - - if ($tokens[$parsepos] eq ",") { - - $parsepos++; - - } elsif ($tokens[$parsepos] eq "STATIC") { - - $member{'array'} = "static"; - $parsepos++; - - } elsif ($tokens[$parsepos] eq "DYNAMIC") { - - $member{'array'} = "dynamic"; - $parsepos++; - - } elsif ($tokens[$parsepos] eq "MAXWRITE") { - - $member{'maxwrite'} = $tokens[$parsepos + 1]; - $parsepos += 2; - - } elsif ($tokens[$parsepos] eq "]") { - - $parsepos++; - if ($parsepos != $tokens_nr) { - die "Error: Invalid tokens after array declaration in input file (line $line)\n"; - - } - } else { - - if ($member{'size'}) { - die "Attempt to use more than one array size in input file (line $line)\n" . - "(Original size was \"$member->{'size'}\", new size is \"$tokens[$parsepos]\"\n"; - } - - $member{'size'} = $tokens[$parsepos]; - $parsepos++; - } - } - - - unless ($member{'size'}) { - die "Array declaration without size in input file (line $line)\n"; - } - } - } - - @{$records{$struct}}->[$newidx] = \%member; - } - } else { # not parsing struct; normal operation. - - if ($tokens[0] eq "TYPE") { # Simple type declaration - - my $newtype = $tokens[1]; - - $types{$newtype}->{'ctype'} = $tokens[2]; - - if ($tokens_nr == 5) { # must be ...LIKE... - - unless ($tokens[3] eq "LIKE") { - die "Invalid TYPE declaration in input file (line $line)\n"; - } - - $types{$newtype}->{'type'} = $types{$tokens[4]}->{'type'}; - $types{$newtype}->{'reader'} = $types{$tokens[4]}->{'reader'}; - $types{$newtype}->{'writer'} = $types{$tokens[4]}->{'writer'}; - - } elsif ($tokens_nr == 6) { # must be ...USING... - - unless ($tokens[3] eq "USING") { - die "Invalid TYPE declaration in input file (line $line)\n"; - } - - $types{$newtype}->{'writer'} = $tokens[4]; - $types{$newtype}->{'reader'} = $tokens[5]; - $types{$newtype}->{'external'} = 'T'; - - } else { - die "Invalid TYPE declaration in input file (line $line)\n"; - } - - } elsif ($tokens[0] eq "RECORD") { - - $struct = $tokens[1]; - if ($types{$struct}) { - die "Attempt to re-define existing type $struct as a struct in input file (line $line)"; - } - $types{$struct}{'type'} = $type_record; - if ($tokens_nr < 3 or $tokens_nr > 6 or $tokens[$tokens_nr - 1] ne "{") { - die "Invalid record declaration in input file (line $line)"; - } - - my $extoffset = 2; - - if ($tokens_nr > 3) { - if ($tokens[2] ne "EXTENDS") { # Record declaration with explicit c type - $types{$struct}{'ctype'} = $tokens[2]; - $extoffset = 3; - } else { # Record name is the same as the c type name - $types{$struct}{'ctype'} = $struct; - } - } elsif ($tokens_nr == 3) { - $types{$struct}{'ctype'} = $struct; - } - - if (($tokens_nr > $extoffset + 1) && ($extoffset + 1 <= $tokens_nr)) { - if ($tokens[$extoffset] ne "EXTENDS") { - die "Invalid or improper keyword \"$tokens[$extoffset]\" in input file (line $line)"; - } - if ($extoffset + 2 >= $tokens_nr) { - die "RECORD \"$struct\" extends on unspecified type in input file (line $line)"; - } - my $ext_type = $tokens[$extoffset + 1]; - - if (!($types{$ext_type}{type} eq $type_record)) { - print "$types{$ext_type}{type}"; - die "RECORD \"$struct\" attempts to extend non-existing or non-record type \"$ext_type\" in input file (line $line)"; - } - - (@{$records{$struct}}) = (@{$records{$ext_type}}); # Copy type information from super type - } - - } else { - die "Invalid declaration \"$tokens[0]\" in line $line"; - } - } - } - - - } else { - - ($subtoken) = split ";"; # Get rid of trailing ;s - $tokens_nr = @tokens = split " ", $subtoken; - - if ($tokens_nr == 1 && $tokens[0] eq "%CFSML") { - - $parsing = 1; - - } elsif ($tokens[0] eq "%CFSMLWRITE" and $tokens[3] eq "INTO" and $tokens_nr >= 5) { - - insert_writer_code($type = $tokens[1], $datap = $tokens[2], $fh = $tokens[4]); - my $templine = $line + 1; - write_line_pp($templine, 1); # Yes, this sucks. - - } elsif (($tokens[0] eq "%CFSMLREAD") or ($tokens[0] eq "%CFSMLREAD-ATOMIC") and $tokens[3] eq "FROM" and $tokens_nr >= 5) { - - my $myeofvar = 0; - my $myfirsttoken = 0; - my $mylinecounter = 0; - - my $idcounter = 5; - - while ($idcounter < $tokens_nr) { - if ($tokens[$idcounter] eq "ERRVAR" and $tokens_nr >= $idcounter + 2) { - $myeofvar = $tokens[$idcounter + 1]; - $idcounter += 2; - } elsif ($tokens[$idcounter] eq "FIRSTTOKEN" and $tokens_nr >= $idcounter + 2) { - $myfirsttoken = $tokens[$idcounter + 1]; - $idcounter += 2; - } elsif ($tokens[$idcounter] eq "LINECOUNTER" and $tokens_nr >= $idcounter + 2) { - $mylinecounter = $tokens[$idcounter + 1]; - $idcounter += 2; - } else { - die "Unknown %CFSMLREAD operational token: $tokens[$idcounter]\n"; - } - } - insert_reader_code($type = $tokens[1], $datap = $tokens[2], - $fh = $tokens[4], $eofvar = $myeofvar, $firsttoken = $myfirsttoken, - $linecounter = $mylinecounter, $atomic = ($tokens[0] eq "%CFSMLREAD-ATOMIC")); - my $templine = $line + 1; - write_line_pp($templine, 1); # Yes, this sucks, too. - - } else { - print; - } - } - -} - -if ($parsing) { - print <STDERR>, "Warning: Missing %END CFSML\n"; -} |