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sukhanov |
/****************************************************************************/
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/* */
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/* Module: jamnote.c */
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/* */
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/* Copyright (C) Altera Corporation 1997 */
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/* */
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/* Description: Functions to extract NOTE fields from an JAM program */
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/* */
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/****************************************************************************/
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/****************************************************************************/
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/* */
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/* Actel version 1.1 May 2003 */
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/* */
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/****************************************************************************/
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#include "jamexprt.h"
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#include "jamdefs.h"
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#include "jamexec.h"
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#include "jamutil.h"
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/****************************************************************************/
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/* */
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BOOL jam_get_note_key
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(
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char *statement_buffer,
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long *key_begin,
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long *key_end
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)
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/* */
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/* Description: This function finds the note key name in the statement */
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/* buffer and returns the start and end offsets */
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/* */
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/* Returns: TRUE for success, FALSE if key not found */
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/* */
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/****************************************************************************/
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{
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int index = 0;
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BOOL quoted_string = FALSE;
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index = jam_skip_instruction_name(statement_buffer);
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/*
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* Check if key string has quotes
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*/
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if ((statement_buffer[index] == JAMC_QUOTE_CHAR) &&
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(index < JAMC_MAX_STATEMENT_LENGTH))
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{
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quoted_string = TRUE;
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++index;
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}
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/*
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* Mark the beginning of the key string
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*/
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*key_begin = index;
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/*
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* Now find the end of the key string
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*/
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if (quoted_string)
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{
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/* look for matching quote */
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while ((statement_buffer[index] != JAMC_NULL_CHAR) &&
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(statement_buffer[index] != JAMC_QUOTE_CHAR) &&
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(index < JAMC_MAX_STATEMENT_LENGTH))
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{
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++index;
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}
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if (statement_buffer[index] == JAMC_QUOTE_CHAR)
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{
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*key_end = index;
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}
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}
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else
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{
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/* look for white space */
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while ((statement_buffer[index] != JAMC_NULL_CHAR) &&
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(!jam_isspace(statement_buffer[index])) &&
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(index < JAMC_MAX_STATEMENT_LENGTH))
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{
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++index; /* skip over white space */
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}
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if (jam_isspace(statement_buffer[index]))
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{
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*key_end = index;
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}
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}
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return ((*key_end > *key_begin) ? TRUE : FALSE);
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}
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/****************************************************************************/
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/* */
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BOOL jam_get_note_value
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(
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char *statement_buffer,
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long *value_begin,
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long *value_end
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)
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/* */
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/* Description: Finds the value field of a NOTE. Could be enclosed in */
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/* quotation marks, or could not be. Must be followed by */
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/* a semicolon. */
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/* */
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/* Returns: TRUE for success, FALSE for failure */
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/* */
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/****************************************************************************/
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{
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int index = 0;
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BOOL quoted_string = FALSE;
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BOOL status = FALSE;
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/* skip over white space */
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while ((statement_buffer[index] != JAMC_NULL_CHAR) &&
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(jam_isspace(statement_buffer[index])) &&
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(index < JAMC_MAX_STATEMENT_LENGTH))
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{
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++index;
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}
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/*
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* Check if value string has quotes
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*/
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if ((statement_buffer[index] == JAMC_QUOTE_CHAR) &&
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(index < JAMC_MAX_STATEMENT_LENGTH))
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{
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quoted_string = TRUE;
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++index;
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}
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/*
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* Mark the beginning of the value string
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*/
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*value_begin = index;
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/*
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* Now find the end of the value string
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*/
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if (quoted_string)
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{
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/* look for matching quote */
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while ((statement_buffer[index] != JAMC_NULL_CHAR) &&
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(statement_buffer[index] != JAMC_QUOTE_CHAR) &&
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(index < JAMC_MAX_STATEMENT_LENGTH))
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{
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++index;
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}
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if (statement_buffer[index] == JAMC_QUOTE_CHAR)
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{
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*value_end = index;
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status = TRUE;
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++index;
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}
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}
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else
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{
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/* look for white space or semicolon */
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while ((statement_buffer[index] != JAMC_NULL_CHAR) &&
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(statement_buffer[index] != JAMC_SEMICOLON_CHAR) &&
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(!jam_isspace(statement_buffer[index])) &&
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(index < JAMC_MAX_STATEMENT_LENGTH))
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{
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++index; /* skip over non-white space */
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}
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if ((statement_buffer[index] == JAMC_SEMICOLON_CHAR) ||
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(jam_isspace(statement_buffer[index])))
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{
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*value_end = index;
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status = TRUE;
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}
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}
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if (status)
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{
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while ((statement_buffer[index] != JAMC_NULL_CHAR) &&
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(jam_isspace(statement_buffer[index])) &&
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(index < JAMC_MAX_STATEMENT_LENGTH))
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{
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++index; /* skip over white space */
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}
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/*
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* Next character must be semicolon
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*/
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if (statement_buffer[index] != JAMC_SEMICOLON_CHAR)
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{
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status = FALSE;
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}
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}
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return (status);
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}
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/****************************************************************************/
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/* */
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JAM_RETURN_TYPE jam_get_note
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(
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char *program,
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long program_size,
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long *offset,
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char *key,
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char *value,
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int length
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)
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/* */
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/* Description: Gets key and value of NOTE fields in the JAM file. */
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/* Can be called in two modes: if offset pointer is NULL, */
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/* then the function searches for note fields which match */
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/* the key string provided. If offset is not NULL, then */
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/* the function finds the next note field of any key, */
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/* starting at the offset specified by the offset pointer. */
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/* */
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/* Returns: JAMC_SUCCESS for success, else appropriate error code */
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/* */
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/****************************************************************************/
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{
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JAM_RETURN_TYPE status = JAMC_SUCCESS;
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char statement_buffer[JAMC_MAX_STATEMENT_LENGTH + 1];
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char label_buffer[JAMC_MAX_NAME_LENGTH + 1];
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JAME_INSTRUCTION instruction = JAM_ILLEGAL_INSTR;
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long key_begin = 0L;
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long key_end = 0L;
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long value_begin = 0L;
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long value_end = 0L;
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BOOL done = FALSE;
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char *tmp_program = jam_program;
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long tmp_program_size = jam_program_size;
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long tmp_current_file_position = jam_current_file_position;
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long tmp_current_statement_position = jam_current_statement_position;
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long tmp_next_statement_position = jam_next_statement_position;
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jam_program = program;
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jam_program_size = program_size;
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jam_current_statement_position = 0L;
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jam_next_statement_position = 0L;
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if (offset == NULL)
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{
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/*
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* We will search for the first note with a specific key, and
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* return only the value
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*/
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status = jam_seek(0L);
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jam_current_file_position = 0L;
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}
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else
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{
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/*
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* We will search for the next note, regardless of the key, and
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* return both the value and the key
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*/
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status = jam_seek(*offset);
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jam_current_file_position = *offset;
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}
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/*
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* Get program statements and look for NOTE statements
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*/
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while ((!done) && (status == JAMC_SUCCESS))
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{
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status = jam_get_statement(statement_buffer, label_buffer);
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if (status == JAMC_SUCCESS)
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{
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instruction = jam_get_instruction(statement_buffer);
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if (instruction == JAM_NOTE_INSTR)
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{
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if (jam_get_note_key(statement_buffer, &key_begin, &key_end))
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{
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statement_buffer[key_end] = JAMC_NULL_CHAR;
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if ((offset != NULL) || (jam_stricmp(
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key, &statement_buffer[key_begin]) == 0))
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{
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if (jam_get_note_value(&statement_buffer[key_end + 1],
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&value_begin, &value_end))
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{
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done = TRUE;
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value_begin += (key_end + 1);
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value_end += (key_end + 1);
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statement_buffer[value_end] = JAMC_NULL_CHAR;
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if (offset != NULL)
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{
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*offset = jam_current_file_position;
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}
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}
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else
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{
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status = JAMC_SYNTAX_ERROR;
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}
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}
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}
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else
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{
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status = JAMC_SYNTAX_ERROR;
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}
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}
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}
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}
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/*
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* Copy the key and value strings into buffers provided
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*/
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if (done && (status == JAMC_SUCCESS))
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{
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if (offset != NULL)
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{
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/* only copy the key string if we were looking for all NOTEs */
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jam_strncpy(
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key, &statement_buffer[key_begin], JAMC_MAX_NAME_LENGTH);
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}
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jam_strncpy(value, &statement_buffer[value_begin], length);
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}
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jam_program = tmp_program;
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jam_program_size = tmp_program_size;
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jam_current_file_position = tmp_current_file_position;
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jam_current_statement_position = tmp_current_statement_position;
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jam_next_statement_position = tmp_next_statement_position;
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return (status);
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}
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