diff options
Diffstat (limited to 'interface.c')
| -rw-r--r-- | interface.c | 234 |
1 files changed, 0 insertions, 234 deletions
diff --git a/interface.c b/interface.c deleted file mode 100644 index 419e624..0000000 --- a/interface.c +++ /dev/null @@ -1,234 +0,0 @@ -/* - * - * Interpreteur de ligne de commande - * - */ - -#include <stdio.h> -#include <limits.h> -#ifdef HAVE_CONFIG_H -#include "config.h" -#else -#define _(x) x -#endif -#include "interface.h" -#include "exceptions.h" -#include "pile.h" - - - -typedef unsigned char op_t; - -typedef struct operator_t { - op_t op; - int pri, func; -} operator_t; - -op_t pile_operators[PILEOP_MAX]; -int pile_nestedcall[PILECALL_MAX]; - -int pileop_pos = 0, pilecall_pos = 0; - -operator_t operators[] = { - {',', 0, OP_NEST}, - {'+', 2, OP_PLUS}, - {'-', 2, OP_MOINS}, - {'*', 3, OP_MUL}, - {'/', 3, OP_DIV}, - {'%', 3, OP_MOD}, - {'^', 4, OP_EXP}, - {'+' + 128, 5, OP_PLUS_UNARY}, - {'-' + 128, 5, OP_MOINS_UNARY}, - {'=', 1, OP_ASSIGN}, - {'(', 6, OP_FUNC_CALL}, - {'(' + 128, 6, OP_LPAREN}, - {255, -1, -1} -}; - -operator_t get_op(op_t op) -{ - int i; - - for (i = 0; operators[i].op != 255; i++) { - if (operators[i].op == op) - return operators[i]; - } - - return operators[i]; -} - -int get_pri(op_t op) -{ - return get_op(op).pri; -} - -int get_func(op_t op) -{ - return get_op(op).func; -} - -op_t get_last_op(void) -{ - if (pileop_pos) - return pile_operators[pileop_pos - 1]; - else - return -1; -} - -op_t pop_op(void) -{ - if (pileop_pos) - return pile_operators[--pileop_pos]; - return -1; -} - -void push_op(op_t op) -{ - if (pileop_pos != PILEOP_MAX) - pile_operators[pileop_pos++] = op; - else - exception(-1, _("Too many nested operators in expression.\n")); - -} - -int pop_call(void) -{ - if (pilecall_pos) - fprintf(stderr, "Dépilement du dernier appel de fonction: %i\n", - pile_nestedcall[pilecall_pos - 1]); - return pile_nestedcall[--pilecall_pos]; - return -1; -} - -void increment_call(void) -{ - if (pilecall_pos) { - fprintf(stderr, "Incrément du dernier appel de fonction: %i\n", - pile_nestedcall[pilecall_pos - 1]); - if (pile_nestedcall[pilecall_pos - 1] != -1) - pile_nestedcall[pilecall_pos - 1]++; - } -} - -int get_last_call(void) -{ - if (pilecall_pos) - return pile_nestedcall[pilecall_pos - 1]; - return -1; -} - -void push_call(int call) -{ - fprintf(stderr, "Empilement d'un appel de fonction: %i\n", call); - if (pilecall_pos != PILECALL_MAX) - pile_nestedcall[pilecall_pos++] = call; - else - exception(-1, _("Too many nested functions calls in expression.\n")); -} - -char *getword(char *line, char *p) -{ - char o; - - do { - if (*(line) != ' ') { - o = *(p++) = *line; - fprintf(stderr, "getword(): a trouvé le caractère '%c'\n", o); - } - line++; - } while ((*line) && (*line != ')') && (*line != ';') && (get_func(*line) == -1) - && (get_func(o) == -1)); - *p = '\0'; - return line; -} - -int parse_line(char *line) -{ - char buffer[BUFSIZ]; - op_t op; - int got_unary = 128, nbrargs; - - fprintf(stderr, "Analyse de: \"%s\"...\n\n", line); - while (*line) { - line = getword(line, buffer); - fprintf(stderr, "parse_line(): getword a trouvé le mot \"%s\"\n", buffer); - if (get_func(buffer[0]) != -1) { - fprintf(stderr, "Il s'agit d'un opérateur.\n"); - buffer[0] += got_unary; - if (got_unary) { - fprintf(stderr, "Opérateur de type unaire\n"); - } - if (get_pri(buffer[0]) == -1) { - if (got_unary) { - exception(-1, _("Invalid unary operator")); - } else { - exception(-1, _("Invalid binary operator")); - } - } - fprintf(stderr, "Priorité du dernier op: %i, priorité actu: %i\n", - get_pri(get_last_op()), get_pri(buffer[0])); - while (get_pri(get_last_op()) >= get_pri(buffer[0]) - && ((get_last_op() & 127) != '(')) { - fprintf(stderr, - "Il y a un opérateur plus important sur la file.\n"); - act_pile(get_func(pop_op())); - got_unary = 0; - fprintf(stderr, "Priorité du dernier op: %i, priorité actu: %i\n", - get_pri(get_last_op()), get_pri(buffer[0])); - } - fprintf(stderr, "Mise sur la file\n"); - if (buffer[0] == '(') { - push_call(0); - } - if (buffer[0] == ',') { - increment_call(); - } else - push_op(buffer[0]); - got_unary = 128; - } else if ((buffer[0] == ';') || (buffer[0] == ')')) { - fprintf(stderr, "Caractère spécial\n"); - switch (buffer[0]) { - case ';': - fprintf(stderr, "Vidage complet de la file (fin de commande).\n"); - while (pileop_pos) { - op = pop_op(); - if (op == '(') - exception(-1, - _ - ("Parse error: too much left parenthesis")); - act_pile(get_func(op)); - } - break; - case ')': - fprintf(stderr, "Vidage de la file jusqu'à '(' car ')' trouvée.\n"); - while (1) { - if (!pileop_pos) - exception(-1, - _ - ("Parse error: too much right parenthesis")); - op = pop_op(); - if (((op & 127) == '(')) - break; - act_pile(get_func(op)); - } - if (op == '(') { - nbrargs = pop_call(); - push_pile_int(nbrargs); - act_pile(get_func(op)); - } - got_unary = 0; - break; - } - } else if (((buffer[0] >= 'A') && (buffer[0] <= 'Z')) - || ((buffer[0] >= 'a') && (buffer[0] <= 'z')) - || ((buffer[0] >= '0') && (buffer[0] <= '9')) || (buffer[0] == '_')) { - fprintf(stderr, "Symbole.\n"); - push_pile(buffer); - got_unary = 0; - if (!get_last_call()) - increment_call(); - } else if (buffer[0]) { - exception(-1, _("Invalid character")); - } - } -} |