handle superscript powers
This commit is contained in:
23
src/parser.c
23
src/parser.c
@@ -54,7 +54,7 @@ static double get_double_value(s_token token)
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return token.value_int;
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}
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static double get_coefficient_absolute(s_token *tokens, int i, int *token_count)
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static double get_coefficient(s_token *tokens, int i, int *token_count)
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{
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double coefficient;
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@@ -140,13 +140,18 @@ static int get_exponent(s_token *tokens, int i, int *token_count)
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return 0;
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}
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// then get power sign '^'
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// then get power sign '^' or directly superscript power like '²'
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if (tokens[i].type == TOKEN_POWER)
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{
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i++;
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*token_count += 1;
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}
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// else if (tokens[i].type == TOKEN_NUMBER_INT_POWER){}
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else if (tokens[i].type == TOKEN_NUMBER_INT_SUPER)
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{
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*token_count += 1;
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// return exponent directly
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return tokens[i].value_int;
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}
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else
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{
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// if token is 'x' not followed by '^' -> it's an exponent 1
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@@ -201,13 +206,15 @@ int parse(s_token *tokens, s_term *terms, int terms_count_max)
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check_variables(tokens);
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print_debug("PARSER STEPS :\n"); // debug
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terms_count = 0;
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token_count = 0;
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i = 0;
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term_position = TERM_LEFT;
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while (tokens[i].type != TOKEN_END && terms_count < terms_count_max)
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{
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// ft_printf("- token[%i]\n", i); // debug
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print_debug("- token[%i]\n", i); // debug
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// equal
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if (tokens[i].type == TOKEN_EQUAL)
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@@ -229,19 +236,19 @@ int parse(s_token *tokens, s_term *terms, int terms_count_max)
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sign = -1;
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}
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i += token_count;
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// ft_printf("term[%i] get_sign: (%i)[%s], token_count: [%d]\n", terms_count, ret_sign, term_sign_to_str(ret_sign), token_count); // debug
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print_debug("term[%i] get_sign: (%i)[%s], token_count: [%d]\n", terms_count, ret_sign, term_sign_to_str(ret_sign), token_count); // debug
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// coefficient
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double ret_coefficient = get_coefficient_absolute(tokens, i, &token_count);
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double ret_coefficient = get_coefficient(tokens, i, &token_count);
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terms[terms_count].coefficient = ret_coefficient * sign;
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i += token_count;
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// printf("term[%i] get_coefficient: [%g], token_count: [%d]\n", terms_count, ret_coefficient, token_count); // debug
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print_debug("term[%i] get_coefficient: [%g], token_count: [%d]\n", terms_count, ret_coefficient, token_count); // debug
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// exponent
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int ret_exponent = get_exponent(tokens, i, &token_count);
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terms[terms_count].exponent = ret_exponent;
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i += token_count;
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// ft_printf("term[%i] get_exponent: [%i], token_count: [%d]\n", terms_count, ret_exponent, token_count); // debug
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print_debug("term[%i] get_exponent: [%i], token_count: [%d]\n", terms_count, ret_exponent, token_count); // debug
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terms_count++;
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}
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