diff options
Diffstat (limited to 'src/tibchar.c')
| -rw-r--r-- | src/tibchar.c | 618 |
1 files changed, 309 insertions, 309 deletions
diff --git a/src/tibchar.c b/src/tibchar.c index 876cc77..8b59fbc 100644 --- a/src/tibchar.c +++ b/src/tibchar.c @@ -1,6 +1,6 @@ /* * libtib - Read, write, and evaluate TI BASIC programs - * Copyright (C) 2015-2016 Delwink, LLC + * Copyright (C) 2015-2017 Delwink, LLC * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as published by @@ -26,412 +26,412 @@ static PrefixTree *keywords = NULL; const char * -tib_special_char_text (int c) +tib_special_char_text(int c) { - switch (c) - { - case TIB_CHAR_AND: - return " And "; + switch (c) + { + case TIB_CHAR_AND: + return " And "; - case TIB_CHAR_ANS: - return "Ans"; + case TIB_CHAR_ANS: + return "Ans"; - case TIB_CHAR_AXESOFF: - return "AxesOff"; + case TIB_CHAR_AXESOFF: + return "AxesOff"; - case TIB_CHAR_CLEARDRAW: - return "ClrDraw"; + case TIB_CHAR_CLEARDRAW: + return "ClrDraw"; - case TIB_CHAR_CLEARHOME: - return "ClrHome"; + case TIB_CHAR_CLEARHOME: + return "ClrHome"; - case TIB_CHAR_CLRLIST: - return "ClrList"; + case TIB_CHAR_CLRLIST: + return "ClrList"; - case TIB_CHAR_COS: - return "cos("; + case TIB_CHAR_COS: + return "cos("; - case TIB_CHAR_DEGREE: - return "*(pi/180)"; + case TIB_CHAR_DEGREE: + return "*(pi/180)"; - case TIB_CHAR_DELVAR: - return "DelVar"; + case TIB_CHAR_DELVAR: + return "DelVar"; - case TIB_CHAR_DIFFERENT: - return "~"; + case TIB_CHAR_DIFFERENT: + return "~"; - case TIB_CHAR_DIM: - return "Dim("; + case TIB_CHAR_DIM: + return "Dim("; - case TIB_CHAR_DISP: - return "Disp("; + case TIB_CHAR_DISP: + return "Disp("; - case TIB_CHAR_ELSE: - return "Else"; + case TIB_CHAR_ELSE: + return "Else"; - case TIB_CHAR_END: - return "End"; + case TIB_CHAR_END: + return "End"; - case TIB_CHAR_EPOW10: - return "*10^"; + case TIB_CHAR_EPOW10: + return "*10^"; - case TIB_CHAR_FILL: - return "Fill("; + case TIB_CHAR_FILL: + return "Fill("; - case TIB_CHAR_FOR: - return "For("; + case TIB_CHAR_FOR: + return "For("; - case TIB_CHAR_GETKEY: - return "GetKey"; + case TIB_CHAR_GETKEY: + return "GetKey"; - case TIB_CHAR_GOTO: - return "Goto "; + case TIB_CHAR_GOTO: + return "Goto "; - case TIB_CHAR_IF: - return "If "; + case TIB_CHAR_IF: + return "If "; - case TIB_CHAR_INPUT: - return "Input "; + case TIB_CHAR_INPUT: + return "Input "; - case TIB_CHAR_INT: - return "int("; + case TIB_CHAR_INT: + return "int("; - case TIB_CHAR_L1: - return "L\\1"; + case TIB_CHAR_L1: + return "L\\1"; - case TIB_CHAR_L2: - return "L\\2"; + case TIB_CHAR_L2: + return "L\\2"; - case TIB_CHAR_L3: - return "L\\3"; + case TIB_CHAR_L3: + return "L\\3"; - case TIB_CHAR_L4: - return "L\\4"; + case TIB_CHAR_L4: + return "L\\4"; - case TIB_CHAR_L5: - return "L\\5"; + case TIB_CHAR_L5: + return "L\\5"; - case TIB_CHAR_L6: - return "L\\6"; + case TIB_CHAR_L6: + return "L\\6"; - case TIB_CHAR_L7: - return "L\\7"; + case TIB_CHAR_L7: + return "L\\7"; - case TIB_CHAR_L8: - return "L\\8"; + case TIB_CHAR_L8: + return "L\\8"; - case TIB_CHAR_L9: - return "L\\9"; + case TIB_CHAR_L9: + return "L\\9"; - case TIB_CHAR_LABEL: - return "Lbl "; + case TIB_CHAR_LABEL: + return "Lbl "; - case TIB_CHAR_LINE: - return "Line("; + case TIB_CHAR_LINE: + return "Line("; - case TIB_CHAR_MATA: - return "[[A]]"; + case TIB_CHAR_MATA: + return "[[A]]"; - case TIB_CHAR_MATB: - return "[[B]]"; + case TIB_CHAR_MATB: + return "[[B]]"; - case TIB_CHAR_MATC: - return "[[C]]"; + case TIB_CHAR_MATC: + return "[[C]]"; - case TIB_CHAR_MATD: - return "[[D]]"; + case TIB_CHAR_MATD: + return "[[D]]"; - case TIB_CHAR_MATE: - return "[[E]]"; + case TIB_CHAR_MATE: + return "[[E]]"; - case TIB_CHAR_MATF: - return "[[F]]"; + case TIB_CHAR_MATF: + return "[[F]]"; - case TIB_CHAR_MATG: - return "[[G]]"; + case TIB_CHAR_MATG: + return "[[G]]"; - case TIB_CHAR_MATH: - return "[[H]]"; + case TIB_CHAR_MATH: + return "[[H]]"; - case TIB_CHAR_MATI: - return "[[I]]"; + case TIB_CHAR_MATI: + return "[[I]]"; - case TIB_CHAR_MENU: - return "Menu("; + case TIB_CHAR_MENU: + return "Menu("; - case TIB_CHAR_NOT: - return "Not("; + case TIB_CHAR_NOT: + return "Not("; - case TIB_CHAR_OR: - return " Or "; + case TIB_CHAR_OR: + return " Or "; - case TIB_CHAR_OUTPUT: - return "Output("; + case TIB_CHAR_OUTPUT: + return "Output("; - case TIB_CHAR_PAUSE: - return "Pause "; + case TIB_CHAR_PAUSE: + return "Pause "; - case TIB_CHAR_PI: - return "pi"; + case TIB_CHAR_PI: + return "pi"; - case TIB_CHAR_PIC1: - return "Pic1"; + case TIB_CHAR_PIC1: + return "Pic1"; - case TIB_CHAR_PIXEL_TEST: - return "pxl-Test("; + case TIB_CHAR_PIXEL_TEST: + return "pxl-Test("; - case TIB_CHAR_RAND: - return "RAND"; + case TIB_CHAR_RAND: + return "RAND"; - case TIB_CHAR_RANDINT: - return "RandInt("; + case TIB_CHAR_RANDINT: + return "RandInt("; - case TIB_CHAR_RECALLPIC: - return "RecallPic "; + case TIB_CHAR_RECALLPIC: + return "RecallPic "; - case TIB_CHAR_REPEAT: - return "Repeat "; + case TIB_CHAR_REPEAT: + return "Repeat "; - case TIB_CHAR_RETURN: - return "Return "; + case TIB_CHAR_RETURN: + return "Return "; - case TIB_CHAR_ROUND: - return "Round("; + case TIB_CHAR_ROUND: + return "Round("; - case TIB_CHAR_SIN: - return "sin("; + case TIB_CHAR_SIN: + return "sin("; - case TIB_CHAR_STO: - return "$"; + case TIB_CHAR_STO: + return "$"; - case TIB_CHAR_STOP: - return "Stop "; + case TIB_CHAR_STOP: + return "Stop "; - case TIB_CHAR_STOREPIC: - return "StorePic "; + case TIB_CHAR_STOREPIC: + return "StorePic "; - case TIB_CHAR_TAN: - return "tan("; + case TIB_CHAR_TAN: + return "tan("; - case TIB_CHAR_TEXT: - return "Text("; + case TIB_CHAR_TEXT: + return "Text("; - case TIB_CHAR_THEN: - return "Then"; + case TIB_CHAR_THEN: + return "Then"; - case TIB_CHAR_THETA: - return "Theta"; + case TIB_CHAR_THETA: + return "Theta"; - case TIB_CHAR_WHILE: - return "While "; + case TIB_CHAR_WHILE: + return "While "; - case TIB_CHAR_XMIN: - return "Xmin"; + case TIB_CHAR_XMIN: + return "Xmin"; - case TIB_CHAR_XMAX: - return "Xmax"; + case TIB_CHAR_XMAX: + return "Xmax"; - case TIB_CHAR_XSCL: - return "Xscl"; + case TIB_CHAR_XSCL: + return "Xscl"; - case TIB_CHAR_YMIN: - return "Ymin"; + case TIB_CHAR_YMIN: + return "Ymin"; - case TIB_CHAR_YMAX: - return "Ymax"; + case TIB_CHAR_YMAX: + return "Ymax"; - case TIB_CHAR_YSCL: - return "Yscl"; + case TIB_CHAR_YSCL: + return "Yscl"; - default: - return NULL; - } + default: + return NULL; + } } static int -load_range (int beg, int end) +load_range(int beg, int end) { - int rc = 0, i; - for (i = beg; i <= end; ++i) - { - const char *trans = tib_special_char_text (i); - if (NULL == trans) - continue; - - rc = pt_add (keywords, trans, i); - if (rc) - return rc; - } - - return rc; + int rc = 0, i; + for (i = beg; i <= end; ++i) + { + const char *trans = tib_special_char_text(i); + if (NULL == trans) + continue; + + rc = pt_add(keywords, trans, i); + if (rc) + return rc; + } + + return rc; } static int -tokenize (struct tib_expr *expr, char *beg) +tokenize(struct tib_expr *expr, char *beg) { - int rc; - char *orig = beg; - size_t len = strlen (beg); - - rc = tib_expr_init (expr); - if (rc) - return rc; - - while (beg < orig + len) - { - char temp; - char *end = strchr (beg, '('); - - if (end) - { - temp = *(++end); - *end = '\0'; - - const PrefixTree *t = pt_search (keywords, beg); - *end = temp; - - if (t) - { - rc = tib_expr_push (expr, pt_data (t)); - if (rc) - goto fail; - - beg = end; - continue; - } - } - - bool found = false; - for (end = beg + 1; end <= orig + len; ++end) - { - temp = *end; - *end = '\0'; - - const PrefixTree *t = pt_search (keywords, beg); - if (t) - { - rc = tib_expr_push (expr, pt_data (t)); - if (rc) - goto fail; - - beg = end; - found = true; - } - - *end = temp; - if (found) - break; - } - - if (!found) - { - rc = tib_expr_push (expr, *beg); - if (rc) - goto fail; - - ++beg; - } - } - - return rc; + int rc; + char *orig = beg; + size_t len = strlen(beg); + + rc = tib_expr_init(expr); + if (rc) + return rc; + + while (beg < orig + len) + { + char temp; + char *end = strchr(beg, '('); + + if (end) + { + temp = *(++end); + *end = '\0'; + + const PrefixTree *t = pt_search(keywords, beg); + *end = temp; + + if (t) + { + rc = tib_expr_push(expr, pt_data(t)); + if (rc) + goto fail; + + beg = end; + continue; + } + } + + bool found = false; + for (end = beg + 1; end <= orig + len; ++end) + { + temp = *end; + *end = '\0'; + + const PrefixTree *t = pt_search(keywords, beg); + if (t) + { + rc = tib_expr_push(expr, pt_data(t)); + if (rc) + goto fail; + + beg = end; + found = true; + } + + *end = temp; + if (found) + break; + } + + if (!found) + { + rc = tib_expr_push(expr, *beg); + if (rc) + goto fail; + + ++beg; + } + } + + return rc; fail: - tib_expr_destroy (expr); - return rc; + tib_expr_destroy(expr); + return rc; } int -tib_encode_str (struct tib_expr *expr, const char *s) +tib_encode_str(struct tib_expr *expr, const char *s) { - int rc = 0; - char *buf, *beg; - size_t line_len = strlen (s); - - buf = malloc ((line_len + 1) * sizeof (char)); - if (!buf) - return TIB_EALLOC; - - strcpy (buf, s); - beg = buf; - expr->len = 0; - - while (beg < buf + line_len) - { - char *end = strchr (beg, '"'); - if (end) - *end = '\0'; - - struct tib_expr part; - rc = tokenize (&part, beg); - if (rc) - break; - - rc = tib_exprcat (expr, &part); - tib_expr_destroy (&part); - if (rc) - break; - - if (!end) - break; - - beg = end + 1; - end = strchr (beg, '"'); - - if (!end) - end = buf + line_len; - - rc = tib_expr_push (expr, '"'); - if (rc) - break; - - for (; beg < end; ++beg) - { - rc = tib_expr_push (expr, *beg); - if (rc) - goto end; - } - - if (*end) - { - rc = tib_expr_push (expr, *end); - if (rc) - break; - } - - beg = end + 1; - } + int rc = 0; + char *buf, *beg; + size_t line_len = strlen(s); + + buf = malloc((line_len + 1) * sizeof(char)); + if (!buf) + return TIB_EALLOC; + + strcpy(buf, s); + beg = buf; + expr->len = 0; + + while (beg < buf + line_len) + { + char *end = strchr(beg, '"'); + if (end) + *end = '\0'; + + struct tib_expr part; + rc = tokenize(&part, beg); + if (rc) + break; + + rc = tib_exprcat(expr, &part); + tib_expr_destroy(&part); + if (rc) + break; + + if (!end) + break; + + beg = end + 1; + end = strchr(beg, '"'); + + if (!end) + end = buf + line_len; + + rc = tib_expr_push(expr, '"'); + if (rc) + break; + + for (; beg < end; ++beg) + { + rc = tib_expr_push(expr, *beg); + if (rc) + goto end; + } + + if (*end) + { + rc = tib_expr_push(expr, *end); + if (rc) + break; + } + + beg = end + 1; + } end: - if (rc) - tib_expr_destroy (expr); + if (rc) + tib_expr_destroy(expr); - free (buf); - return rc; + free(buf); + return rc; } int -tib_keyword_init () +tib_keyword_init() { - if (keywords) - return 0; + if (keywords) + return 0; - keywords = pt_new (); - if (NULL == keywords) - return TIB_EALLOC; + keywords = pt_new(); + if (NULL == keywords) + return TIB_EALLOC; - int rc = load_range (TIB_FIRST_CHAR, TIB_LAST_CHAR); - if (rc) - tib_keyword_free (); + int rc = load_range(TIB_FIRST_CHAR, TIB_LAST_CHAR); + if (rc) + tib_keyword_free(); - return rc; + return rc; } void -tib_keyword_free () +tib_keyword_free() { - if (keywords) - { - pt_free (keywords); - keywords = NULL; - } + if (keywords) + { + pt_free(keywords); + keywords = NULL; + } } |