| | |
| | | /*- |
| | | * Copyright (c) 2012-2015 Jan Breuer, |
| | | * BSD 2-Clause License |
| | | * |
| | | * All Rights Reserved |
| | | * Copyright (c) 2012-2018, Jan Breuer |
| | | * All rights reserved. |
| | | * |
| | | * Redistribution and use in source and binary forms, with or without |
| | | * modification, are permitted provided that the following conditions are |
| | | * met: |
| | | * 1. Redistributions of source code must retain the above copyright notice, |
| | | * this list of conditions and the following disclaimer. |
| | | * 2. Redistributions in binary form must reproduce the above copyright |
| | | * notice, this list of conditions and the following disclaimer in the |
| | | * documentation and/or other materials provided with the distribution. |
| | | * modification, are permitted provided that the following conditions are met: |
| | | * |
| | | * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR |
| | | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| | | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| | | * DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE |
| | | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| | | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| | | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
| | | * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| | | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE |
| | | * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN |
| | | * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| | | * * Redistributions of source code must retain the above copyright notice, this |
| | | * list of conditions and the following disclaimer. |
| | | * |
| | | * * Redistributions in binary form must reproduce the above copyright notice, |
| | | * this list of conditions and the following disclaimer in the documentation |
| | | * and/or other materials provided with the distribution. |
| | | * |
| | | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| | | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| | | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| | | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
| | | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| | | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| | | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| | | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| | | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| | | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| | | */ |
| | | |
| | | /** |
| | |
| | | |
| | | /** |
| | | * Parse one range or single value |
| | | * @param state lexical state |
| | | * @param state lexer state |
| | | * @param isRange return true if parsed expression is range |
| | | * @param valueFrom return parsed value from |
| | | * @param valueTo return parsed value to |
| | |
| | | * SCPI_EXPR_ERROR - parser error |
| | | * SCPI_EXPR_NO_MORE - no more data |
| | | */ |
| | | static scpi_expr_result_t numericRange(lex_state_t * state, scpi_bool_t * isRange, scpi_token_t * valueFrom, scpi_token_t * valueTo) |
| | | { |
| | | static scpi_expr_result_t numericRange(lex_state_t * state, scpi_bool_t * isRange, scpi_token_t * valueFrom, scpi_token_t * valueTo) { |
| | | if (scpiLex_DecimalNumericProgramData(state, valueFrom)) { |
| | | if (scpiLex_Colon(state, valueTo)) { |
| | | *isRange = TRUE; |
| | |
| | | * SCPI_EXPR_NO_MORE - no more data |
| | | * @see SCPI_ExprNumericListEntryInt, SCPI_ExprNumericListEntryDouble |
| | | */ |
| | | scpi_expr_result_t SCPI_ExprNumericListEntry(scpi_t * context, scpi_parameter_t * param, int index, scpi_bool_t * isRange, scpi_parameter_t * valueFrom, scpi_parameter_t * valueTo) |
| | | { |
| | | scpi_expr_result_t SCPI_ExprNumericListEntry(scpi_t * context, scpi_parameter_t * param, int index, scpi_bool_t * isRange, scpi_parameter_t * valueFrom, scpi_parameter_t * valueTo) { |
| | | lex_state_t lex; |
| | | int i; |
| | | scpi_expr_result_t res = SCPI_EXPR_OK; |
| | |
| | | * SCPI_EXPR_NO_MORE - no more data |
| | | * @see SCPI_ExprNumericListEntry, SCPI_ExprNumericListEntryDouble |
| | | */ |
| | | scpi_expr_result_t SCPI_ExprNumericListEntryInt(scpi_t * context, scpi_parameter_t * param, int index, scpi_bool_t * isRange, int32_t * valueFrom, int32_t * valueTo) |
| | | { |
| | | scpi_expr_result_t SCPI_ExprNumericListEntryInt(scpi_t * context, scpi_parameter_t * param, int index, scpi_bool_t * isRange, int32_t * valueFrom, int32_t * valueTo) { |
| | | scpi_expr_result_t res; |
| | | scpi_bool_t range = FALSE; |
| | | scpi_parameter_t paramFrom; |
| | |
| | | res = SCPI_ExprNumericListEntry(context, param, index, &range, ¶mFrom, ¶mTo); |
| | | if (res == SCPI_EXPR_OK) { |
| | | *isRange = range; |
| | | SCPI_ParamToInt(context, ¶mFrom, valueFrom); |
| | | SCPI_ParamToInt32(context, ¶mFrom, valueFrom); |
| | | if (range) { |
| | | SCPI_ParamToInt(context, ¶mTo, valueTo); |
| | | SCPI_ParamToInt32(context, ¶mTo, valueTo); |
| | | } |
| | | } |
| | | |
| | |
| | | * SCPI_EXPR_NO_MORE - no more data |
| | | * @see SCPI_ExprNumericListEntry, SCPI_ExprNumericListEntryInt |
| | | */ |
| | | scpi_expr_result_t SCPI_ExprNumericListEntryDouble(scpi_t * context, scpi_parameter_t * param, int index, scpi_bool_t * isRange, double * valueFrom, double * valueTo) |
| | | { |
| | | scpi_expr_result_t SCPI_ExprNumericListEntryDouble(scpi_t * context, scpi_parameter_t * param, int index, scpi_bool_t * isRange, double * valueFrom, double * valueTo) { |
| | | scpi_expr_result_t res; |
| | | scpi_bool_t range = FALSE; |
| | | scpi_parameter_t paramFrom; |
| | |
| | | |
| | | return res; |
| | | } |
| | | |
| | | /** |
| | | * Parse one channel_spec e.g. "1!5!8" |
| | | * @param context |
| | | * @param state lexer state |
| | | * @param values range values |
| | | * @param length length of values array |
| | | * @param dimensions real number of dimensions |
| | | */ |
| | | static scpi_expr_result_t channelSpec(scpi_t * context, lex_state_t * state, int32_t * values, size_t length, size_t * dimensions) { |
| | | scpi_parameter_t param; |
| | | size_t i = 0; |
| | | while (scpiLex_DecimalNumericProgramData(state, ¶m)) { |
| | | if (i < length) { |
| | | SCPI_ParamToInt32(context, ¶m, &values[i]); |
| | | } |
| | | |
| | | if (scpiLex_SpecificCharacter(state, ¶m, '!')) { |
| | | i++; |
| | | } else { |
| | | *dimensions = i + 1; |
| | | return SCPI_EXPR_OK; |
| | | } |
| | | } |
| | | |
| | | if (i == 0) { |
| | | return SCPI_EXPR_NO_MORE; |
| | | } else { |
| | | /* there was at least one number followed by !, but after ! was not another number */ |
| | | return SCPI_EXPR_ERROR; |
| | | } |
| | | } |
| | | |
| | | /** |
| | | * Parse channel_range e.g. "1!2:5!6" |
| | | * @param context |
| | | * @param state lexer state |
| | | * @param isRange return true if it is range |
| | | * @param valuesFrom return array of values from |
| | | * @param valuesTo return array of values to |
| | | * @param length length of values arrays |
| | | * @param dimensions real number of dimensions |
| | | */ |
| | | static scpi_expr_result_t channelRange(scpi_t * context, lex_state_t * state, scpi_bool_t * isRange, int32_t * valuesFrom, int32_t * valuesTo, size_t length, size_t * dimensions) { |
| | | scpi_token_t token; |
| | | scpi_expr_result_t err; |
| | | size_t fromDimensions; |
| | | size_t toDimensions; |
| | | |
| | | err = channelSpec(context, state, valuesFrom, length, &fromDimensions); |
| | | if (err == SCPI_EXPR_OK) { |
| | | if (scpiLex_Colon(state, &token)) { |
| | | *isRange = TRUE; |
| | | err = channelSpec(context, state, valuesTo, length, &toDimensions); |
| | | if (err != SCPI_EXPR_OK) { |
| | | return SCPI_EXPR_ERROR; |
| | | } |
| | | if (fromDimensions != toDimensions) { |
| | | return SCPI_EXPR_ERROR; |
| | | } |
| | | *dimensions = fromDimensions; |
| | | } else { |
| | | *isRange = FALSE; |
| | | *dimensions = fromDimensions; |
| | | return SCPI_EXPR_OK; |
| | | } |
| | | } else if (err == SCPI_EXPR_NO_MORE) { |
| | | err = SCPI_EXPR_ERROR; |
| | | } |
| | | |
| | | return err; |
| | | } |
| | | |
| | | /** |
| | | * Parse one list entry at specific position e.g. "1!2:5!6" |
| | | * @param context |
| | | * @param param |
| | | * @param index |
| | | * @param isRange return true if it is range |
| | | * @param valuesFrom return array of values from |
| | | * @param valuesTo return array of values to |
| | | * @param length length of values arrays |
| | | * @param dimensions real number of dimensions |
| | | */ |
| | | scpi_expr_result_t SCPI_ExprChannelListEntry(scpi_t * context, scpi_parameter_t * param, int index, scpi_bool_t * isRange, int32_t * valuesFrom, int32_t * valuesTo, size_t length, size_t * dimensions) { |
| | | lex_state_t lex; |
| | | int i; |
| | | scpi_expr_result_t res = SCPI_EXPR_OK; |
| | | scpi_token_t token; |
| | | |
| | | if (!isRange || !param || !dimensions || (length && (!valuesFrom || !valuesTo))) { |
| | | SCPI_ErrorPush(context, SCPI_ERROR_SYSTEM_ERROR); |
| | | return SCPI_EXPR_ERROR; |
| | | } |
| | | |
| | | if (param->type != SCPI_TOKEN_PROGRAM_EXPRESSION) { |
| | | SCPI_ErrorPush(context, SCPI_ERROR_DATA_TYPE_ERROR); |
| | | return SCPI_EXPR_ERROR; |
| | | } |
| | | |
| | | lex.buffer = param->ptr + 1; |
| | | lex.pos = lex.buffer; |
| | | lex.len = param->len - 2; |
| | | |
| | | /* detect channel list expression */ |
| | | if (!scpiLex_SpecificCharacter(&lex, &token, '@')) { |
| | | SCPI_ErrorPush(context, SCPI_ERROR_EXPRESSION_PARSING_ERROR); |
| | | return SCPI_EXPR_ERROR; |
| | | } |
| | | |
| | | for (i = 0; i <= index; i++) { |
| | | res = channelRange(context, &lex, isRange, valuesFrom, valuesTo, (i == index) ? length : 0, dimensions); |
| | | if (res != SCPI_EXPR_OK) { |
| | | break; |
| | | } |
| | | if (i != index) { |
| | | if (!scpiLex_Comma(&lex, &token)) { |
| | | res = scpiLex_IsEos(&lex) ? SCPI_EXPR_NO_MORE : SCPI_EXPR_ERROR; |
| | | break; |
| | | } |
| | | } |
| | | } |
| | | |
| | | if (res == SCPI_EXPR_ERROR) { |
| | | SCPI_ErrorPush(context, SCPI_ERROR_EXPRESSION_PARSING_ERROR); |
| | | } |
| | | if (res == SCPI_EXPR_NO_MORE) { |
| | | if (!scpiLex_IsEos(&lex)) { |
| | | res = SCPI_EXPR_ERROR; |
| | | SCPI_ErrorPush(context, SCPI_ERROR_EXPRESSION_PARSING_ERROR); |
| | | } |
| | | } |
| | | return res; |
| | | } |