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/**
* @file autogen.h
*
* Time-stamp: "2012-04-07 09:45:02 bkorb"
*
* Global header file for AutoGen
*
* This file is part of AutoGen.
* AutoGen Copyright (c) 1992-2012 by Bruce Korb - all rights reserved
*
* AutoGen 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 3 of the License, or
* (at your option) any later version.
*
* AutoGen 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. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef AUTOGEN_BUILD
#define AUTOGEN_BUILD 1
#include "compat/unlocked-io.h"
#include REGEX_HEADER
#include <libguile/scmconfig.h>
#if GUILE_VERSION < 107000
# include <guile/gh.h>
#else
# include <libguile.h>
#endif
#include "ag-text.h"
#include "opts.h"
#include "expr.h"
#include "autoopts/autoopts.h"
#include "directive.h"
#include "snprintfv/printf.h"
#define LOG10_2to32 10 /* rounded up */
#if defined(SHELL_ENABLED) || defined(DAEMON_ENABLED)
# ifndef HAVE_WORKING_FORK
# error SHELL is enabled and fork() does not work
choke me
# endif
#endif
#ifndef DIRCH
# if defined(_WIN32) && !defined(__CYGWIN__)
# define DIRCH '\\'
# else
# define DIRCH '/'
# endif
#endif
#define YYSTYPE t_word
#define ag_offsetof(TYPE, MEMBER) ((unsigned long) &((TYPE *)0)->MEMBER)
/*
* Dual pipe opening of a child process
*/
typedef struct {
int fd_read;
int fd_write;
} fd_pair_t;
typedef struct {
FILE * fp_read; /* parent read fp */
FILE * fp_write; /* parent write fp */
} fp_pair_t;
#define NOPROCESS ((pid_t)-1)
#define NULLPROCESS ((pid_t)0)
#define NL '\n'
#define TAB '\t'
#include "cgi-fsm.h"
#include "defParse-fsm.h"
typedef union {
unsigned char * pzStr;
unsigned char ch;
} def_token_u_t;
#define STATE_TABLE /* set up `atexit' and load Guile */ \
_State_( INIT ) /* processing command line options */ \
_State_( OPTIONS ) /* Loading guile at option time */ \
_State_( GUILE_PRELOAD ) /* Loading value definitions */ \
_State_( LOAD_DEFS ) /* Loading library template */ \
_State_( LIB_LOAD ) /* Loading primary template */ \
_State_( LOAD_TPL ) /* processing templates */ \
_State_( EMITTING ) /* loading an included template */ \
_State_( INCLUDING ) /* end of processing before exit() */ \
_State_( CLEANUP ) /* Clean up code in error response */ \
_State_( ABORTING ) /* `exit' has been called */ \
_State_( DONE )
#define _State_(n) PROC_STATE_ ## n,
typedef enum { STATE_TABLE COUNT_PROC_STATE } proc_state_t;
#undef _State_
#define EXPORT
typedef struct out_stack out_stack_t;
typedef struct out_spec out_spec_t;
typedef struct scan_context scan_ctx_t;
typedef struct def_entry def_ent_t;
typedef struct macro_desc macro_t;
typedef struct template_desc templ_t;
typedef struct for_state for_state_t;
typedef struct tlib_mark tlib_mark_t;
#define MAX_SUFFIX_LEN 8 /* maximum length of a file name suffix */
#define MAX_HEREMARK_LEN 64 /* max length of a here mark */
#define SCRIBBLE_SIZE 256 /* much larger than any short name */
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
*
* Template Library Layout
*
* Procedure for loading a template function
*/
typedef macro_t * (load_proc_t)(templ_t*, macro_t*, char const** ppzScan);
typedef load_proc_t * load_proc_p_t;
typedef void (unload_proc_t)(macro_t*);
typedef unload_proc_t* unload_proc_p_t;
/*
* Procedure for handling a template function
* during the text emission phase.
*/
typedef macro_t* (hdlr_proc_t)(templ_t*, macro_t*);
typedef hdlr_proc_t* hdlr_proc_p_t;
/*
* This must be included after the function prototypes
* (the prototypes are used in the generated tables),
* but before the macro descriptor structure (the function
* enumeration is generated here).
*/
#include "functions.h"
#define TEMPLATE_REVISION 1
#define TEMPLATE_MAGIC_MARKER {{{'A', 'G', 'L', 'B'}}, \
TEMPLATE_REVISION, FUNCTION_CKSUM }
struct tlib_mark {
union {
unsigned char str[4]; /* {'A', 'G', 'L', 'B'} */
unsigned int i[1];
} tlm_magic;
unsigned short tlm_revision; /* TEMPLATE_REVISION */
unsigned short tlm_cksum; /* FUNCTION_CKSUM */
};
/*
* Defines for conditional expressions.
* The first four are an enumeration that appear in the
* low four bits and the next-to-lowest four bits.
* "PRIMARY_TYPE" and "SECONDARY_TYPE" are masks for
* extracting this enumeration. The rest are flags.
*/
#define EMIT_VALUE 0x0000 /* emit value of variable */
#define EMIT_EXPRESSION 0x0001 /* Emit Scheme result */
#define EMIT_SHELL 0x0002 /* emit shell output */
#define EMIT_STRING 0x0003 /* emit content of expr */
#define EMIT_PRIMARY_TYPE 0x0007
#define EMIT_SECONDARY_TYPE 0x0070
#define EMIT_SECONDARY_SHIFT 4
#define EMIT_IF_ABSENT 0x0100
#define EMIT_ALWAYS 0x0200 /* emit one of two exprs */
#define EMIT_FORMATTED 0x0400 /* format, if val present */
#define EMIT_NO_DEFINE 0x0800 /* don't get defined value */
struct macro_desc {
mac_func_t md_code; /* Macro function */
int md_line; /* of macro def */
int md_end_idx; /* End of block macro */
int md_sib_idx; /* Sibling macro (ELIF or SELECT) */
uintptr_t md_name_off; /* macro name (sometimes) */
uintptr_t md_txt_off; /* associated text */
uintptr_t md_res; /* some sort of result */
void * md_pvt;
};
struct template_desc {
tlib_mark_t td_magic; /* TEMPLATE_MAGIC_MARKER */
size_t td_size; /* Structure Size */
char * td_scan; /* Next Pointer */
int td_mac_ct; /* Count of Macros */
char const * td_file; /* Name of template file */
char * td_name; /* Defined Macro Name */
char * td_text; /* offset of the text */
char td_start_mac[MAX_SUFFIX_LEN];
char td_end_mac[ MAX_SUFFIX_LEN];
macro_t td_macros[1]; /* Array of Macros */
/* char td_text[...]; * strings at end of macros */
};
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
*
* Name/Value Definitions Layout
*/
typedef enum {
VALTYP_UNKNOWN = 0,
VALTYP_TEXT,
VALTYP_BLOCK
} val_typ_t;
#define NO_INDEX ((short)0x80DEAD)
typedef struct def_ctx def_ctx_t;
struct def_ctx {
def_ent_t * dcx_defent; //!< ptr to current def set
def_ctx_t * dcx_prev; //!< ptr to previous def set
};
typedef union {
def_ent_t * dvu_entry;
char * dvu_text;
} def_val_u;
struct def_entry {
def_ent_t * de_next; //!< next member of same level
def_ent_t * de_twin; //!< next member with same name
def_ent_t * de_ptwin; //!< previous memb. of level
def_ent_t * de_etwin; //!< head of chain to end ptr
char * de_name; //!< name of this member
long de_index; //!< index among twins
def_val_u de_val; //!< string or list of children
char * de_file; //!< definition file name
int de_line; //!< def file source line
val_typ_t de_type; //!< text/block/not defined yet
};
struct scan_context {
scan_ctx_t * scx_next;
char * scx_scan;
char const * scx_fname;
char * scx_data;
int scx_line;
};
struct out_spec {
out_spec_t * os_next;
char const * os_file_fmt;
bool os_dealloc_fmt;
char os_sfx[ 1 ];
};
/**
* Output stack handling flags.
*/
#define FPF_FREE 0x0001 /*!< free the fp structure */
#define FPF_UNLINK 0x0002 /*!< unlink file (temp file) */
#define FPF_NOUNLINK 0x0004 /*!< do not unlink file */
#define FPF_STATIC_NM 0x0008 /*!< name statically alloced */
#define FPF_NOCHMOD 0x0010 /*!< do not chmod(2) file */
#define FPF_TEMPFILE 0x0020 /*!< the file is a temp */
struct out_stack {
int stk_flags;
out_stack_t * stk_prev;
FILE * stk_fp;
char const * stk_fname;
};
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
*
* FOR loop processing state
*/
/**
* The current state of each active FOR loop.
*/
struct for_state {
bool for_loading; //!< the FOR macro is getting ready
int for_from; //!< the first index of loop
int for_to; //!< the last index of loop
int for_by; //!< the loop increment (usually 1)
int for_index; //!< the current index
char * for_sep_str; //!< inter-iteration string (allocated)
char * for_name; //!< name of iterator (not allocated)
bool for_islast; //!< true for last iteration
bool for_isfirst; //!< true for first iteration
jmp_buf for_env; //!< long jump buffer (BREAK, CONTINUE)
};
typedef enum {
LOOP_JMP_OKAY = 0,
LOOP_JMP_NEXT = 1,
LOOP_JMP_BREAK = 2
} loop_jmp_type_t;
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/**
* Invocation of a defined macro processing state
*/
typedef struct ivk_info ivk_info_t;
struct ivk_info {
ivk_info_t * ii_prev; //!< previous layer
int ii_depth; //!< Invocation nesting depth
jmp_buf ii_env; //!< long jump buffer (RETURN)
int ii_for_depth; //!< for depth for this invocation
int ii_for_alloc; //!< for state buffer allocation count
for_state_t * ii_for_data; //!< array of "for" macro states
};
#define IVK_INFO_INITIALIZER(_p) { \
.ii_prev = (_p), \
.ii_depth = curr_ivk_info->ii_depth + 1, \
.ii_for_depth = 0, \
.ii_for_alloc = 0, \
.ii_for_data = NULL \
}
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
*
* Parsing stuff
*/
#define _MkStr(_s) #_s
#define MK_STR(_s) _MkStr(_s)
#define SCM_EVAL_CONST(_s) \
do { static int const line = __LINE__ - 1; \
static char const file[] = __FILE__; \
static char const * text = _s; \
last_scm_cmd = text; \
ag_scm_c_eval_string_from_file_line(text, file, line); \
} while (false)
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
*
* GLOBAL VARIABLES
*
* General Processing Globals
*/
#define ag_pname autogenOptions.pzProgName
MODE proc_state_t processing_state VALUE( PROC_STATE_INIT );
MODE unsigned int include_depth VALUE( 0 );
MODE bool defining_macro VALUE( false );
MODE templ_t * named_tpls VALUE( NULL );
MODE char const * oops_pfx VALUE( "" );
/*
* "eval_mac_expr" must be able to return a distinct empty string so that
* the "CASE" function can distinguish an empty string due to it being a
* value from an empty string due to an absent definition.
*/
MODE char const no_def_str[1] VALUE( "" );
/*
* Template Processing Globals
*/
MODE char const * curr_sfx VALUE( NULL );
/**
* The time to set for the modification times of the output files.
*/
MODE time_t outfile_time VALUE( 0 );
/**
* The original time autogen started
*/
MODE time_t start_time VALUE( 0 );
MODE out_stack_t * cur_fpstack VALUE( NULL );
MODE out_spec_t * output_specs VALUE( NULL );
MODE jmp_buf abort_jmp_buf;
MODE ivk_info_t root_ivk_info VALUE( { 0 } );
MODE ivk_info_t * curr_ivk_info VALUE( &root_ivk_info );
MODE for_state_t * for_state VALUE( NULL );
MODE FILE * trace_fp VALUE( NULL );
/**
* temporary file name template
*/
MODE char const * pz_temp_tpl VALUE( NULL );
/**
* Length of the template that is the temp directory
*/
MODE size_t temp_tpl_dir_len VALUE( 0 );
/**
* dependency file file pointer.
*/
MODE FILE* dep_fp VALUE( NULL );
/**
* name of target of rule
*/
MODE char const * dep_target VALUE( NULL );
/**
* name of dependency file
*/
MODE char const * dep_file VALUE( NULL );
/**
* base name of both source and derived files.
* Either "_TList" or "_SList" gets put on the end.
*/
MODE char const * pz_targ_base VALUE( NULL );
/**
* The actual list of input (source) files.
*/
MODE char const * source_list VALUE( NULL );
MODE size_t source_size VALUE( 0 );
MODE size_t source_used VALUE( 0 );
MODE bool dep_phonies VALUE( false );
MODE char * cgi_stderr VALUE( NULL );
MODE char const * server_args[2] VALUE( { NULL } );
MODE char const * shell_program VALUE( MK_STR(CONFIG_SHELL) );
/*
* AutoGen definiton and template context
*
* curr_def_ctx is the current, active list of name/value pairs.
* Points to its parent list for full search resolution.
*
* current_tpl the template (and DEFINE macro) from which
* the current set of macros is being extracted.
*
* These are set in exactly ONE place:
* On entry to the dispatch routine (gen_block). Two routines, however,
* must restore the values: mFunc_Define and mFunc_For. They are the only
* routines that dynamically push name/value pairs on the definition stack.
*/
MODE def_ctx_t curr_def_ctx VALUE( { NULL } );
MODE def_ctx_t root_def_ctx VALUE( { NULL } );
MODE templ_t * current_tpl VALUE( NULL );
MODE char const * last_scm_cmd VALUE( NULL );
#ifdef DAEMON_ENABLED
/*
* When operating as a daemon, autogen can be told to reload
* its options the next time it wakes up (send it a SIGHUP).
*/
MODE bool redo_opts VALUE( true );
#endif
/*
* Current Macro
*
* This may be set in exactly three places:
* 1. The dispatch routine (gen_block) that steps through
* a list of macros
* 2. mFunc_If may transfer to one of its 'ELIF' or 'ELSE'
* alternation macros
* 3. mFunc_Case may transfer to one of its selection clauses.
*/
MODE macro_t * cur_macro VALUE( NULL );
MODE tlib_mark_t const magic_marker VALUE( TEMPLATE_MAGIC_MARKER );
/*
* Template Parsing Globals
*/
MODE int tpl_line VALUE( 1 );
MODE scan_ctx_t * base_ctx VALUE( NULL );
MODE scan_ctx_t * cctx VALUE( NULL );
MODE scan_ctx_t * end_ctx VALUE( NULL );
MODE size_t end_mac_len VALUE( 0 );
MODE char end_mac_mark[8] VALUE( "" );
MODE size_t st_mac_len VALUE( 0 );
MODE char st_mac_mark[8] VALUE( "" );
MODE out_stack_t out_root VALUE({ 0 });
#define name_sep_ch '.'
/*
* Definition Parsing Globals
*/
MODE char * token_str VALUE( NULL );
MODE te_dp_event token_code VALUE( DP_EV_INVALID );
MODE int ent_stack_depth VALUE( 0 );
MODE int ent_stack_sz VALUE( 16 );
MODE def_ent_t * dft_ent_stack[16] VALUE( { 0 } );
MODE def_ent_t ** ent_stack VALUE( dft_ent_stack );
MODE def_ent_t * curr_ent VALUE( NULL );
MODE autogen_exit_code_t exit_code VALUE( AUTOGEN_EXIT_OPTION_ERROR );
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
*
* IF we have fopencookie or funopen, then we also have our own fmemopen
*/
#ifdef ENABLE_FMEMOPEN
extern FILE * ag_fmemopen(void *buf, ssize_t len, char const *mode);
extern int ag_fmemioctl(FILE * fp, int req, ...);
#endif
typedef union {
const void* cp;
void* p;
} v2c_t;
MODE v2c_t p2p VALUE( { NULL } );
#ifdef DEBUG_ENABLED
# define AG_ABEND(s) ag_abend_at(s,__FILE__,__LINE__)
#else
# define AG_ABEND(s) ag_abend_at(s)
#endif
#define AG_CANT(_op, _wh) \
AG_ABEND(aprf(CANNOT_FMT, errno, _op, _wh, strerror(errno)))
#ifdef DEBUG_FSM
# define DEBUG
#else
# undef DEBUG
#endif
#define AG_ABEND_IN(t,m,s) \
STMTS( current_tpl=(t); cur_macro=(m); AG_ABEND(s);)
#if __STDC_VERSION__ < 199901L
# if __GNUC__ >= 2
# define __func__ __FUNCTION__
# else
# define __func__ "<unknown>"
# endif
#endif
/*
* Code variations based on the version of Guile:
*/
#include "guile-iface.h"
#include "proto.h"
static inline SCM ag_eval(char const * pzStr)
{
SCM res;
char const * pzSaveScheme = last_scm_cmd; /* Watch for nested calls */
last_scm_cmd = pzStr;
res = ag_scm_c_eval_string_from_file_line(
pzStr, current_tpl->td_file, cur_macro->md_line);
last_scm_cmd = pzSaveScheme;
return res;
}
/*
* Extracted from guile-iface stuff. Seems to be stable since for at least
* 1.6.0 through 2.0.0. 1.4.x is thoroughly dead now (May, 2011).
*/
#define AG_SCM_DISPLAY(_s) \
scm_display(_s, scm_current_output_port())
#define AG_SCM_BOOT_GUILE(_ac, _av, _im) \
scm_boot_guile((_ac), (_av), (_im), NULL)
#define AG_SCM_APPLY2(_op, _f, _tst) \
scm_apply(_op, _f, scm_cons(_tst, AG_SCM_LISTOFNULL()))
#define AG_SCM_CHAR_P(_c) SCM_CHARP(_c)
/*
* Hide dummy functions from complexity measurement tools
*/
#define HIDE_FN(_t) _t
#endif /* AUTOGEN_BUILD */
/*
* Local Variables:
* mode: C
* c-file-style: "stroustrup"
* indent-tabs-mode: nil
* End:
* end of agen5/autogen.h */
|