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| | | /*- |
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| | | * Copyright (c) 2012-2013 Jan Breuer, |
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| | | * BSD 2-Clause License |
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| | | * |
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| | | * All Rights Reserved |
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| | | * |
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| | | * Copyright (c) 2012-2018, Jan Breuer |
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| | | * All rights reserved. |
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| | | * |
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| | | * Redistribution and use in source and binary forms, with or without |
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| | | * modification, are permitted provided that the following conditions are |
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| | | * met: |
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| | | * 1. Redistributions of source code must retain the above copyright notice, |
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| | | * this list of conditions and the following disclaimer. |
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| | | * 2. Redistributions in binary form must reproduce the above copyright |
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| | | * notice, this list of conditions and the following disclaimer in the |
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| | | * documentation and/or other materials provided with the distribution. |
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| | | * |
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| | | * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR |
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| | | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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| | | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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| | | * DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE |
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| | | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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| | | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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| | | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
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| | | * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
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| | | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE |
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| | | * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN |
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| | | * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| | | * modification, are permitted provided that the following conditions are met: |
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| | | * |
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| | | * * Redistributions of source code must retain the above copyright notice, this |
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| | | * list of conditions and the following disclaimer. |
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| | | * |
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| | | * * Redistributions in binary form must reproduce the above copyright notice, |
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| | | * this list of conditions and the following disclaimer in the documentation |
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| | | * and/or other materials provided with the distribution. |
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| | | * |
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| | | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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| | | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| | | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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| | | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
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| | | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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| | | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
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| | | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
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| | | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
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| | | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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| | | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| | | */ |
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| | | |
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| | | /** |
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| | |
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| | | token->type = SCPI_TOKEN_UNKNOWN; |
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| | | } |
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| | | |
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| | | return token->len; |
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| | | return token->len; |
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| | | |
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| | | |
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| | | } |
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| | | |
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| | | /* 7.6.1 <COMMAND PROGRAM HEADER> */ |
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| | |
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| | | * @param token |
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| | | * @return |
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| | | */ |
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| | | |
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| | | /*识别和分类SCPI命令头 |
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| | | 公共命令头 以*识别 如 *IDN? |
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| | | 复合命令头 以:识别 如 SYSTem:ERRor? |
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| | | 命令查询 以？识别 |
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| | | 普通命令：MEAS:VOLT |
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| | | 查询命令：MEAS:VOLT? |
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| | | */ |
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| | | int scpiLex_ProgramHeader(lex_state_t * state, scpi_token_t * token) { |
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| | | |
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| | | // 记录起始位置 并且初始化类型 |
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| | | int res; |
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| | | token->ptr = state->pos; |
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| | | token->type = SCPI_TOKEN_UNKNOWN; |
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| | | |
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| | | res = skipCommonProgramHeader(state); |
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| | | // 解析到公共命令头后检查查询符 |
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| | | if (res >= SKIP_OK) { |
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| | | if (skipChr(state, '?') >= SKIP_OK) { |
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| | | token->type = SCPI_TOKEN_COMMON_QUERY_PROGRAM_HEADER; |
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| | |
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| | | } else if (res <= SKIP_INCOMPLETE) { |
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| | | token->type = SCPI_TOKEN_INCOMPLETE_COMMON_PROGRAM_HEADER; |
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| | | } else if (res == SKIP_NONE) { |
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| | | |
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| | | // 解析到复合命令后检查查询符 |
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| | | res = skipCompoundProgramHeader(state); |
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| | | |
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| | | if (res >= SKIP_OK) { |
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| | |
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| | | token->type = SCPI_TOKEN_INCOMPLETE_COMPOUND_PROGRAM_HEADER; |
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| | | } |
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| | | } |
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| | | |
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| | | // 计算长度 |
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| | | if (token->type != SCPI_TOKEN_UNKNOWN) { |
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| | | token->len = state->pos - token->ptr; |
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| | | } else { |
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