ael_structs.h File Reference

Structures for AEL - the Asterisk extension language. More...

#include "asterisk/paths.h"
#include "pval.h"

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Data Structures
struct	ael_extension
struct	ael_priority
struct	parse_io

Macros
#define	QUAD_MAX   (0x7fffffffffffffffLL)
#define	QUAD_MIN   (-0x7fffffffffffffffLL-1)
#define	YY_TYPEDEF_YY_SCANNER_T

Typedefs
typedef void *	yyscan_t

Enumerations
enum	ael_priority_type {   AEL_APPCALL , AEL_CONTROL1 , AEL_FOR_CONTROL , AEL_IF_CONTROL ,   AEL_IFTIME_CONTROL , AEL_RAND_CONTROL , AEL_LABEL , AEL_RETURN }

Functions
struct pval *	ael2_parse (char *fname, int *errs)
void	ael2_print (char *fname, pval *tree)
void	ael2_semantic_check (pval *item, int *errs, int *warns, int *notes)
void	destroy_pval (pval *item)
pval *	linku1 (pval *head, pval *tail)
pval *	npval (pvaltype type, int first_line, int last_line, int first_column, int last_column)

Variables
char *	prev_word

Detailed Description

Structures for AEL - the Asterisk extension language.

pbx_ael.c

Todo:

document this file (ael.h)

Definition in file ael_structs.h.

Macro Definition Documentation

QUAD_MAX

#define QUAD_MAX   (0x7fffffffffffffffLL)

Definition at line 54 of file ael_structs.h.

QUAD_MIN

#define QUAD_MIN   (-0x7fffffffffffffffLL-1)

Definition at line 51 of file ael_structs.h.

YY_TYPEDEF_YY_SCANNER_T

#define YY_TYPEDEF_YY_SCANNER_T

Definition at line 70 of file ael_structs.h.

Typedef Documentation

yyscan_t

typedef void* yyscan_t

Definition at line 71 of file ael_structs.h.

Enumeration Type Documentation

ael_priority_type

enum ael_priority_type

Enumerator
AEL_APPCALL
AEL_CONTROL1
AEL_FOR_CONTROL
AEL_IF_CONTROL
AEL_IFTIME_CONTROL
AEL_RAND_CONTROL
AEL_LABEL
AEL_RETURN

Definition at line 84 of file ael_structs.h.

{ AEL_APPCALL, AEL_CONTROL1, AEL_FOR_CONTROL, AEL_IF_CONTROL, AEL_IFTIME_CONTROL, AEL_RAND_CONTROL, AEL_LABEL, AEL_RETURN } ael_priority_type;

Function Documentation

ael2_parse()

struct pval * ael2_parse	(	char *	fname,
		int *	errs
	)

Definition at line 3344 of file ael_lex.c.

{
    struct pval *pvalue;
    struct parse_io *io;
    char *buffer;
    struct stat stats;
    FILE *fin;
 
    /* extern int ael_yydebug; */
 
    io = calloc(sizeof(struct parse_io),1);
    /* reset the global counters */
    prev_word = 0;
    my_lineno = 1;
    include_stack_index=0;
    my_col = 0;
    /* ael_yydebug = 1; */
    ael_yylex_init(&io->scanner);
    fin = fopen(filename,"r");
    if ( !fin ) {
        ast_log(LOG_ERROR,"File %s could not be opened\n", filename);
        *errors = 1;
        return 0;
    }
    if (my_file)
        free(my_file);
    my_file = strdup(filename);
    if (stat(filename, &stats)) {
        ast_log(LOG_WARNING, "failed to populate stats from file '%s'\n", filename);
    }
    buffer = (char*)malloc(stats.st_size+2);
    if (fread(buffer, 1, stats.st_size, fin) != stats.st_size) {
        ast_log(LOG_ERROR, "fread() failed: %s\n", strerror(errno));
    }
    buffer[stats.st_size]=0;
    fclose(fin);
 
    ael_yy_scan_string (buffer ,io->scanner);
    ael_yyset_lineno(1 , io->scanner);
 
    /* ael_yyset_in (fin , io->scanner);    OLD WAY */
 
    ael_yyparse(io);
 
 
    pvalue = io->pval;
    *errors = io->syntax_error_count;
 
    ael_yylex_destroy(io->scanner);
    free(buffer);
    free(io);
 
    return pvalue;
}

References ael_yy_scan_string(), ael_yylex_destroy(), ael_yylex_init(), ael_yyparse(), ael_yyset_lineno(), ast_log, errno, free(), include_stack_index, io, LOG_ERROR, LOG_WARNING, malloc(), my_col, my_file, my_lineno, and prev_word.

Referenced by pbx_load_module().

ael2_print()

void ael2_print	(	char *	fname,
		pval *	tree
	)

Definition at line 382 of file pval.c.

{
    FILE *fin = fopen(fname,"w");
    if ( !fin ) {
        ast_log(LOG_ERROR, "Couldn't open %s for writing.\n", fname);
        return;
    }
    print_pval_list(fin, tree, 0);
    fclose(fin);
}

References ast_log, LOG_ERROR, and print_pval_list().

ael2_semantic_check()

void ael2_semantic_check	(	pval *	item,
		int *	errs,
		int *	warns,
		int *	notes
	)

Definition at line 2885 of file pval.c.

{
 
#ifdef AAL_ARGCHECK
    int argapp_errs =0;
    char *rfilename;
#endif
    struct argapp *apps=0;
 
    if (!item)
        return; /* don't check an empty tree */
#ifdef AAL_ARGCHECK
    rfilename = ast_alloca(10 + strlen(ast_config_AST_VAR_DIR));
    sprintf(rfilename, "%s/applist", ast_config_AST_VAR_DIR);
 
    apps = argdesc_parse(rfilename, &argapp_errs); /* giveth */
#endif
    current_db = item;
    errs = warns = notes = 0;
 
    check_context_names();
    check_pval(item, apps, 0);
 
#ifdef AAL_ARGCHECK
    argdesc_destroy(apps);  /* taketh away */
#endif
    current_db = 0;
 
    *arg_errs = errs;
    *arg_warns = warns;
    *arg_notes = notes;
}

References ast_alloca, ast_config_AST_VAR_DIR, check_context_names(), check_pval(), current_db, errs, item, notes, and warns.

Referenced by pbx_load_module().

destroy_pval()

void destroy_pval

(

pval *

item

)

Definition at line 4940 of file pval.c.

{
    pval *i,*nxt;
 
    for (i=item; i; i=nxt) {
        nxt = i->next;
 
        destroy_pval_item(i);
    }
}

References destroy_pval_item(), item, and pval::next.

Referenced by yydestruct(), and yyparse().

linku1()

pval * linku1	(	pval *	head,
		pval *	tail
	)

Definition at line 5922 of file pval.c.

{
    if (!head)
        return tail;
    if (tail) {
        if (!head->next) {
            head->next = tail;
        } else {
            head->u1_last->next = tail;
        }
        head->u1_last = tail;
        tail->prev = head; /* the dad link only points to containers */
    }
    return head;
}

References pval::next, pval::prev, and pval::u1_last.

npval()

struct pval * npval	(	pvaltype	type,
		int	first_line,
		int	last_line,
		int	first_column,
		int	last_column
	)

Definition at line 3965 of file ael.tab.c.

{
    pval *z = calloc(1, sizeof(struct pval));
    z->type = type;
    z->startline = first_line;
    z->endline = last_line;
    z->startcol = first_column;
    z->endcol = last_column;
    z->filename = strdup(S_OR(my_file, "<none>"));
    return z;
}

References pval::endcol, pval::endline, pval::filename, my_file, S_OR, pval::startcol, pval::startline, type, and pval::type.

Referenced by npval2(), and yyparse().

Variable Documentation

prev_word

char* prev_word

extern

Definition at line 878 of file ael_lex.c.

Referenced by ael2_parse(), c_prevword(), while(), yydestruct(), and yyparse().