04b9147e15
Blanket wide to all .c and .h files. Some files originating from ST are difficult to deal with (license wise) so it was left out of those. Also merged modpyb.h, modos.h, modstm.h and modtime.h in stmhal/.
111 lines
3.6 KiB
C
111 lines
3.6 KiB
C
/*
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* This file is part of the Micro Python project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2013, 2014 Damien P. George
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "misc.h"
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#include "mpconfig.h"
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#include "repl.h"
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#if MICROPY_ENABLE_REPL_HELPERS
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bool str_startswith_word(const char *str, const char *head) {
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int i;
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for (i = 0; str[i] && head[i]; i++) {
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if (str[i] != head[i]) {
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return false;
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}
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}
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return head[i] == '\0' && (str[i] == '\0' || !unichar_isalpha(str[i]));
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}
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bool mp_repl_continue_with_input(const char *input) {
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// check for blank input
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if (input[0] == '\0') {
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return false;
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}
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// check if input starts with a certain keyword
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bool starts_with_compound_keyword =
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input[0] == '@'
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|| str_startswith_word(input, "if")
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|| str_startswith_word(input, "while")
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|| str_startswith_word(input, "for")
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|| str_startswith_word(input, "try")
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|| str_startswith_word(input, "with")
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|| str_startswith_word(input, "def")
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|| str_startswith_word(input, "class")
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;
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// check for unmatched open bracket or triple quote
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// TODO don't look at triple quotes inside single quotes
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int n_paren = 0;
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int n_brack = 0;
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int n_brace = 0;
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int in_triple_quote = 0;
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const char *i;
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for (i = input; *i; i++) {
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switch (*i) {
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case '(': n_paren += 1; break;
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case ')': n_paren -= 1; break;
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case '[': n_brack += 1; break;
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case ']': n_brack -= 1; break;
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case '{': n_brace += 1; break;
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case '}': n_brace -= 1; break;
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case '\'':
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if (in_triple_quote != '"' && i[1] == '\'' && i[2] == '\'') {
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i += 2;
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in_triple_quote = '\'' - in_triple_quote;
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}
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break;
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case '"':
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if (in_triple_quote != '\'' && i[1] == '"' && i[2] == '"') {
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i += 2;
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in_triple_quote = '"' - in_triple_quote;
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}
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break;
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}
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}
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// continue if unmatched brackets or quotes
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if (n_paren > 0 || n_brack > 0 || n_brace > 0 || in_triple_quote != 0) {
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return true;
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}
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// continue if last character was backslash (for line continuation)
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if (i[-1] == '\\') {
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return true;
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}
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// continue if compound keyword and last line was not empty
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if (starts_with_compound_keyword && i[-1] != '\n') {
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return true;
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}
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// otherwise, don't continue
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return false;
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}
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#endif // MICROPY_ENABLE_REPL_HELPERS
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