mirror of
https://github.com/firewalkwithm3/Sensor-Watch.git
synced 2024-11-23 03:30:30 +08:00
0a836cecea
* Added Morse code based RPN calculator * added manual and memory register * fixed morsecalc negative indicator, edited header comment * adjusted stack display controls * Fixed warnings. Added calculator token aliasing ability. Added binary shorthand for numeral entry. Extended morse code binary tree. * ui tweaks * Update movement_config.h * silence warning * Reorganized codebase and simplified morse code reading routines. * added 'quit if submission is empty' behavior * reverted rules.mk change for merge into main * corrected timeout behavior * consolidated morsecode lib into one file; deleted old mc.c mc.h * consolidated morsecode lib into one file; deleted old mc.c mc.h * removed specious null in morsecode bintree string --------- Co-authored-by: Christian Chapman <user@debian> Co-authored-by: joeycastillo <joeycastillo@utexas.edu>
114 lines
3.7 KiB
C
114 lines
3.7 KiB
C
/*
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* MIT License
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*
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* Copyright (c) 2023 Christian Chapman
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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 all
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* 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 THE
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* SOFTWARE.
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*/
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#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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#include "calc.h"
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#include "calc_fns.h"
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#define CALC_NAN (0.0/0.0)
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/* calc_init
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* Initialize calculator
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*/
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int calc_init(calc_state_t *cs) {
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memset(cs->stack, CALC_NAN, N_STACK*sizeof(cs->stack[0]));
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cs->s = 0;
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cs->mem = 0.0;
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return 0;
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}
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/* calc_input_function
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* Try to execute the token as a calculator function
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*/
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int calc_input_function(calc_state_t *cs, char *token) {
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for(uint8_t idx=0; idx<sizeof(calc_dict)/sizeof(calc_dict[0]); idx++) {
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for(uint8_t idxn=0; idxn<calc_dict[idx].n_names; idxn++) {
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if(0 == strcmp(calc_dict[idx].names[idxn], token)) { // Found a match
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return (*calc_dict[idx].fn)(cs); // Run calculator function
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}
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}
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}
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return -1; // Unrecognized function name
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}
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/* calc_input_float
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* Read the token as a float.
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* For convenience, numerals can be written in binary:
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* 0 1 2 3 4 5 6 7 8 9
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* . - -. -- -.. -.- --. --- -... -..-
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* e t n m d k g o b x
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*
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* Exponent signs must be entered as "p".
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* Decimal place "." can be entered as "h" (code ....)
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* Sign "-" can be entered as "Ch digraph" (code ----)
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*
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* e.g. "4.2e-3" can be entered directly or as "4h2pC3"
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* similarly, "0.0042" can be "eheedn"
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*/
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#define REPCHAR(X,Y) for(idx=0; idx<strlen(token); idx++) \
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if(X==token[idx]) token[idx] = Y
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int calc_input_float(calc_state_t *cs, char *token) {
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uint8_t idx;
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REPCHAR('e', '0');
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REPCHAR('t', '1');
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REPCHAR('n', '2');
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REPCHAR('m', '3');
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REPCHAR('d', '4');
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REPCHAR('k', '5');
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REPCHAR('g', '6');
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REPCHAR('o', '7');
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REPCHAR('b', '8');
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REPCHAR('x', '9');
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REPCHAR('h', '.');
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REPCHAR('C', '-');
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REPCHAR('p', 'E');
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char *endptr;
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double d = calc_strtof(token, &endptr);
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if(!endptr || (uint8_t)(endptr-token)<strlen(token)) return -1; // Bad format
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if(cs->s >= N_STACK) return -2; // Stack full
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cs->stack[cs->s++] = d;
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return 0;
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}
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/* calc_input
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* Manipulate the stack using the entered token.
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* If the token isn't a calculator function, try to convert it to a number and
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* add it to the stack.
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*
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* Return values:
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* 0 if function completed successfully.
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* -1 if token isn't a calculator function and couldn't convert to float.
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* -2 if stack is too full or too empty
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* -3 for something else
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*/
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int calc_input(calc_state_t *cs, char *token) {
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int retval = calc_input_function(cs, token);
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if(-1 == retval) retval = calc_input_float(cs, token);
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return retval;
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}
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