cqp.c File Reference

#include <stdio.h>
#include <signal.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/time.h>
#include "../cl/globals.h"
#include "../cl/macros.h"
#include "cqp.h"
#include "options.h"
#include "output.h"
#include "symtab.h"
#include "tree.h"
#include "eval.h"
#include "corpmanag.h"
#include "regex2dfa.h"
#include "ranges.h"
#include "macro.h"
#include "targets.h"
#include "parser.tab.h"

Functions

Variables


Function Documentation

void CheckForInterrupts ( void   ) 

Calls the interrupt callback function, if set.

References interruptCallbackHook.

Referenced by evaluate_target(), and simulate().

int cqp_parse_file ( FILE *  fd,
int  exit_on_parse_errors 
)

Parses a stream for CQP query syntax.

Note that cqp_parse_file() fclose()s fd unless it is STDOUT.

Parameters:
fd File handle of the file to parse.
exit_on_parse_errors Boolean: should CQP exit on parse errors?
Returns:
Boolean: true = all ok, false = a problem.

References child_process, cqp_file_p, cqp_files, current_corpus, exit_cqp, MAXCQPFILES, cl::mother_name, cl::name, quiet, reading_cqprc, save_on_exit, save_unsaved_subcorpora(), silent, cl::size, STREQ, yyin, yyparse(), and yyrestart().

Referenced by do_exec(), initialize_cqp(), and main().

int cqp_parse_string ( char *  s  ) 

Parses a stirng for CQP query syntax.

Parameters:
s The string to parse.
Returns:
Boolean: true = all ok, false = a problem.

References cqp_input_string, cqp_input_string_position, cqpmessage(), cqpserver, Error, exit_cqp, which_app, and yyparse().

Referenced by do_cqi_cqp_query(), and main().

void cqp_randomize ( void   ) 

Wrapper function: randomises the internal random number generator.

See also:
cl_randomize

References cl_randomize().

int initialize_cqp ( int  argc,
char **  argv 
)

Initialises the CQP program.

This function:

  • initialises the global variables;
  • initialises the built-in random number generator;
  • initialises the macro database;
  • parses the program options;
  • reads the initialisation file;
  • reads the macro initialisation file;
  • and loads the default corpus, if any.
Parameters:
argc The argc from main()
argv The argv from main()
Returns:
Always 1.

References batchfd, batchmode, check_available_corpora(), child_process, cl_randomize(), corpuslist, cqp_file_p, cqp_init_file, cqp_parse_file(), CQPMACRORC_NAME, cqpmessage(), CQPRC_NAME, cqpserver, default_corpus, eep, enable_macros, exit_cqp, init_macros(), macro_init_file, parse_options(), parser_debug, reading_cqprc, set_current_corpus_name(), UNDEF, Warning, and which_app.

Referenced by main().

void install_signal_handler ( void   ) 
int setInterruptCallback ( InterruptCheckProc  f  ) 

Sets the interrupt callback function.

Parameters:
f Pointer to the function to set as interrupt callback.
Returns:
Always 1.

References interruptCallbackHook.

static void sigINT_signal_handler ( int  signum  )  [static]

This is the signal handler function that is used for the interrupt signal (CTRL+C).

Parameters:
signum The signal number (ignored).

References EvaluationIsRunning, and signal_handler_is_installed.

Referenced by install_signal_handler().

int yyparse ( void   ) 

Activates the CQP-query-language parser.

Referenced by cqp_parse_file(), and cqp_parse_string().

void yyrestart ( FILE *  input_file  ) 

restarts the CQP-query-language parser.

Referenced by cqp_parse_file().


Variable Documentation

index-pointer into cqp_files.

See also:
cqp_files

Referenced by cqp_parse_file(), and initialize_cqp().

FILE* cqp_files[MAXCQPFILES]

Array of file handles.

Referenced by cqp_parse_file().

Pointer for the interrupt callback function.

Referenced by CheckForInterrupts(), and setInterruptCallback().

char QueryBuffer[QUERY_BUFFER_SIZE]

flag which signals buffer overflows

Referenced by after_CorpusCommand(), after_Query(), resetQueryBuffer(), and yy_input_char().

int QueryBufferP = 0

pointer into this buffer, for appending

Referenced by after_Query(), resetQueryBuffer(), and yy_input_char().

int reading_cqprc = 0

Boolean: true iff cqp_parse_file() - the main query syntax parsing function - is currently reading from the cqprc file handler.

See also:
cqprc
cqp_parse_file

Referenced by addHistoryLine(), cqp_parse_file(), initialize_cqp(), and yy_input_char().

FILE* yyin

File handle used by the CQP-query-language parser.

Referenced by cqp_parse_file(), and yy_input_char().


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