X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=lexer%2Fmain.c;h=c8b897978c6c27e9945b1e5de0a2565132718bce;hb=6a19b8fe2e017d899437b43646b27fdcc26d5ed0;hp=8b137891791fe96927ad78e64b0aad7bded08bdc;hpb=e9a51b682b4e6bc16b469fdf5578a045555479bc;p=TP_AL_C.git

diff --git a/lexer/main.c b/lexer/main.c
index 8b13789..c8b8979 100644
--- a/lexer/main.c
+++ b/lexer/main.c
@@ -1 +1,290 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdbool.h>
+#include <wchar.h>
 
+#define TOKEN_MAX 500
+
+struct token_s {
+    const char* type;
+    wint_t value[50];
+};
+
+struct token_s token[TOKEN_MAX] = {NULL, 0};
+
+FILE *source = NULL, *target = NULL;
+wint_t c;
+unsigned int tokenFound = 0;
+enum TokenType {
+    MOTCLE,
+    SECTION,
+    SSECTION,
+    NPARA,
+    MOT,
+    FIN
+} tokenType;
+const char* tokenTypestr[] = { "MOTCLE", "SECTION", "SSECTION", "NPARA", "MOT", "FIN" };
+unsigned int i = 0;
+
+/* It looks silly to check for each characters but for debugging, it's just the way to go */
+bool istAlpha() {
+    if (c == L'a' || c == L'b' || c == L'c' || c == L'd' || c == L'e' || c == L'f' || c == L'g' || \
+        c == L'h' || c == L'i' || c == L'j' || c == L'k' || c == L'l' || c == L'm' || c == L'n' || \
+        c == L'o' || c == L'p' || c == L'q' || c == L'r' || c == L's' || c == L't' || c == L'u' || \
+        c == L'v' || c == L'w' || c == L'x' || c == L'y' || c == L'z' || \
+        c == L'A' || c == L'B' || c == L'C' || c == L'D' || c == L'E' || c == L'F' || c == L'G' || \
+        c == L'H' || c == L'I' || c == L'J' || c == L'K' || c == L'L' || c == L'M' || c == L'N' || \
+        c == L'O' || c == L'P' || c == L'Q' || c == L'R' || c == L'S' || c == L'T' || c == L'U' || \
+        c == L'V' || c == L'W' || c == L'X' || c == L'Y' || c == L'Z' || \
+        c == L'.' || c == L'?' || c == L'!' || c == L',' || c == L';' || c == L':' || c == L'-' || \
+        c == L'\''|| c == L'#' || \
+        c == L'0' || c == L'1' || c == L'2' || c == L'3' || c == L'4' || c == L'5' || c == L'6' || \
+        c == L'7' || c == L'8' || c == L'9' || \
+        c == L'à' || c == L'â' || c == L'ç' || c == L'è' || c == L'é' || c == L'î' || c == L'ô' || \
+        c == L'ù' || c == L'û' || \
+        c == L'À' || c == L'Â' || c == L'Ç' || c == L'È' || c == L'É' || c == L'Î' || c == L'Ô' || \
+        c == L'Ù' || c == L'Û') {
+            return true;
+        }
+        return false;
+}
+
+bool isSeparator() {
+    if (c == L'\t' || c == L' ' || c == L'\n') {
+        return true;
+    }
+    return false;
+}
+
+int scanner() {
+    const wchar_t* Titre = L"Titre";
+    const wchar_t* Auteur = L"Auteur";
+    unsigned int j = 0;
+
+// The main loop get the next character
+init:
+    if (c == L' ' || c == L'\t') {
+        c = fgetwc(source);
+        token[tokenFound].value[i] = c;
+        i++;
+        goto init;
+    }
+    if (c == L'\n') {
+        c = fgetwc(source);
+        token[tokenFound].value[i] = c;
+        i++;
+        goto initLV1;
+    }
+    if (c == L'>') {
+        c = fgetwc(source);
+        token[tokenFound].value[i] = c;
+        i++;
+        goto MC1;
+    }
+    if (c == L'=') {
+        c = fgetwc(source);
+        token[tokenFound].value[i] = c;
+        i++;
+        goto S1SS1;
+    }
+    if (istAlpha()) {
+        c = fgetwc(source);
+        token[tokenFound].value[i] = c;
+        i++;
+        goto M1;
+    }
+    if (c == WEOF) {
+        goto FIN;
+    } else {
+        goto error;
+    }
+
+MC1:
+    // FIXME: Partial match need a rewind in the characters extraction from the file
+    if (c == (wint_t)Titre[j] && j < wcslen(Titre) - 1) {
+        c = fgetwc(source);
+        token[tokenFound].value[i] = c;
+        i++;
+        j++;
+        goto MC1;
+    }
+    if (c == (wint_t)Auteur[j] && j < wcslen(Auteur) - 1) {
+        c = fgetwc(source);
+        token[tokenFound].value[i] = c;
+        i++;
+        j++;
+        goto MC1;
+    } else {
+        c = fgetwc(source);
+        token[tokenFound].value[i] = c;
+        i++;
+        goto MC2;
+    }
+
+S1SS1:
+    if (c == L'=') {
+        c = fgetwc(source);
+        token[tokenFound].value[i] = c;
+        i++;
+        goto SS2;
+    }
+    if (isSeparator() || c == WEOF) {
+        goto SECTION;
+    }
+
+SS2:
+    if (isSeparator() || c == WEOF) {
+        goto SSECTION;
+    }
+
+SECTION:
+    tokenType = SECTION;
+    return 1;
+
+SSECTION:
+    tokenType = SSECTION;
+    return 1;
+
+M1:
+    if (istAlpha()) {
+        c = fgetwc(source);
+        token[tokenFound].value[i] = c;
+        i++;
+        goto M1;
+    }
+    if (isSeparator() || c == WEOF) {
+        goto MOT;
+    }
+
+initLV1:
+    if (c == L' ' || c == L'\t') {
+        c = fgetwc(source);
+        token[tokenFound].value[i] = c;
+        i++;
+        goto initLV1;
+    }
+    if (c == L'\n') {
+        c = fgetwc(source);
+        token[tokenFound].value[i] = c;
+        i++;
+        goto initLV1LV2;
+    }
+    if (istAlpha()) {
+        c = fgetwc(source);
+        token[tokenFound].value[i] = c;
+        i++;
+        goto M1;
+    }
+    if (c == L'=') {
+        c = fgetwc(source);
+        token[tokenFound].value[i] = c;
+        i++;
+        goto S1SS1;
+    }
+    if (c == L'>') {
+        c = fgetwc(source);
+        token[tokenFound].value[i] = c;
+        i++;
+        goto MC1;
+    }
+    if (c == WEOF) {
+        goto FIN;
+    }
+
+initLV1LV2:
+    if (isSeparator()) {
+        c = fgetwc(source);
+        token[tokenFound].value[i] = c;
+        i++;
+        goto initLV1LV2;
+    }
+    if (istAlpha()) {
+        goto NPARA;
+    }
+    if (c == L'>') {
+        c = fgetwc(source);
+        token[tokenFound].value[i] = c;
+        i++;
+        goto MC1;
+    }
+    if (c == L'=') {
+        c = fgetwc(source);
+        token[tokenFound].value[i] = c;
+        i++;
+        goto S1SS1;
+    }
+    if (c == WEOF) {
+        goto FIN;
+    }
+
+NPARA:
+    tokenType = NPARA;
+    return 1;
+
+MOT:
+    tokenType = MOT;
+    return 1;
+
+MC2:
+    if (isSeparator() || c == WEOF) {
+        goto MOTCLE;
+    }
+
+MOTCLE:
+    tokenType = MOTCLE;
+    return 1;
+
+FIN:
+    tokenType = FIN;
+    return 1;
+
+error:
+    tokenType = FIN;
+    return -1;
+}
+
+int main() {
+
+    // Ouvre le fichier test.txt en lecture seulement (le fichier doit exister) :
+    source = fopen("test.txt", "r");
+    // Cree et ouvre un fichier target.html en lecture/ecriture
+    // avec suppression du contenu au prealable :
+    target = fopen("target.html", "w+");
+
+    if (source == NULL) {
+        printf("Impossible d'ouvrir le fichier source\n");
+        return -1;
+    }
+
+    if (target == NULL) {
+        printf("Impossible d'ouvrir le fichier target\n");
+        return -1;
+    }
+
+    do {
+        c = fgetwc(source); // lecture du caractere suivant du fichier source
+        token[tokenFound].value[i] = c;
+        i++;
+        int scanrt = scanner();
+        if (scanrt == -1) {
+            wprintf(L"Scanner error with token value: %ls\n", token[tokenFound].value);
+            exit(EXIT_FAILURE);
+        }
+        if (c != WEOF) {
+            wprintf(L"Token type found: %s with value: %ls\n", tokenTypestr[tokenType], token[tokenFound].value);
+        } else {
+            wprintf(L"Token type found: %s\n", tokenTypestr[tokenType]);
+        }
+        token[tokenFound].type = tokenTypestr[tokenType];
+        tokenFound++;
+        // reinit token.value array counter
+        i = 0;
+    //} while (c != WEOF); // tant que la fin du fichier n'est pas atteinte
+    } while (!feof(source)); // tant que la fin du fichier n'est pas atteinte
+
+    if (source != NULL) fclose(source); // fermeture du fichier source
+    if (target != NULL) fclose(target); // fermeture du fichier target
+
+    return 0;
+}