aaparse.c

#include <string.h>
#include <stdlib.h>
#include "config.h"
#include "aalib.h"
static int inparse;
static void parseenv(struct aa_hardware_params *p, aa_renderparams * r);
static void aa_remove(int i, int *argc, char **argv)
{
    int y;
    if (i < 0 || i >= *argc) {
    printf("AA Internal error #1-please report\n");
    return;
    }
    for (y = i; y < *argc - 1; y++) {
    argv[y] = argv[y + 1];
    }
    argv[*argc - 1] = NULL;
    (*argc)--;
}
int aa_parseoptions(struct aa_hardware_params *p, aa_renderparams * r, int *argc, char **argv)
{
    int i, y;
    int supported;
    if (!inparse)
    parseenv(p, r);
    if (argc == NULL || argv == NULL)
    return 1;
    supported = p != NULL ? p->supported : aa_defparams.supported;
    if (p == NULL)
    p = &aa_defparams;
    if (r == NULL)
    r = &aa_defrenderparams;
    for (i = 1; i < *argc; i++) {
    if (strcmp(argv[i], "-font") == 0) {
        aa_remove(i, argc, argv);
        if (*argc == i) {
        fprintf(stderr, "font name expected\n");
        return (0);
        }
        for (y = 0; aa_fonts[y] != NULL; y++) {
        if (!strcmp(argv[i], aa_fonts[y]->name) ||
            !strcmp(argv[i], aa_fonts[y]->shortname)) {
            p->font = aa_fonts[y];
            aa_remove(i, argc, argv);
            i--;
            break;
        }
        }
        if (aa_fonts[i] == NULL) {
        fprintf(stderr, "font name expected\n");
        return (0);
        }
        i--;
    } else if (strcmp(argv[i], "-normal") == 0) {
        aa_remove(i, argc, argv);
        i--;
        supported |= AA_NORMAL_MASK;
        p->supported = supported;
    } else if (strcmp(argv[i], "-nonormal") == 0) {
        aa_remove(i, argc, argv);
        i--;
        supported &= ~AA_NORMAL_MASK;
        p->supported = supported;
    } else if (strcmp(argv[i], "-bold") == 0) {
        aa_remove(i, argc, argv);
        i--;
        supported |= AA_BOLD_MASK;
        p->supported = supported;
    } else if (strcmp(argv[i], "-nobold") == 0) {
        aa_remove(i, argc, argv);
        i--;
        supported &= ~AA_BOLD_MASK;
        p->supported = supported;
    } else if (strcmp(argv[i], "-boldfont") == 0) {
        aa_remove(i, argc, argv);
        i--;
        supported |= AA_BOLDFONT_MASK;
        p->supported = supported;
    } else if (strcmp(argv[i], "-noboldfont") == 0) {
        aa_remove(i, argc, argv);
        i--;
        supported &= ~AA_BOLDFONT_MASK;
        p->supported = supported;
    } else if (strcmp(argv[i], "-dim") == 0) {
        aa_remove(i, argc, argv);
        i--;
        supported |= AA_DIM_MASK;
        p->supported = supported;
    } else if (strcmp(argv[i], "-nodim") == 0) {
        aa_remove(i, argc, argv);
        i--;
        supported &= ~AA_DIM_MASK;
        p->supported = supported;
    } else if (strcmp(argv[i], "-reverse") == 0) {
        aa_remove(i, argc, argv);
        i--;
        supported |= AA_REVERSE_MASK;
        p->supported = supported;
    } else if (strcmp(argv[i], "-extended") == 0) {
        aa_remove(i, argc, argv);
        i--;
        supported |= AA_EXTENDED;
        p->supported = supported;
    } else if (strcmp(argv[i], "-eight") == 0) {
        aa_remove(i, argc, argv);
        i--;
        supported |= AA_EIGHT;
        p->supported = supported;
    } else if (strcmp(argv[i], "-noreverse") == 0) {
        aa_remove(i, argc, argv);
        i--;
        supported &= ~AA_REVERSE_MASK;
        p->supported = supported;
    } else if (strcmp(argv[i], "-inverse") == 0) {
        aa_remove(i, argc, argv);
        i--;
        r->inversion = 1;
    } else if (strcmp(argv[i], "-noinverse") == 0) {
        aa_remove(i, argc, argv);
        i--;
        r->inversion = 0;
    } else if (strcmp(argv[i], "-nodither") == 0) {
        aa_remove(i, argc, argv);
        i--;
        r->dither = 0;
    } else if (strcmp(argv[i], "-floyd_steinberg") == 0) {
        aa_remove(i, argc, argv);
        i--;
        r->dither = AA_FLOYD_S;
    } else if (strcmp(argv[i], "-error_distribution") == 0) {
        aa_remove(i, argc, argv);
        i--;
        r->dither = AA_ERRORDISTRIB;
    } else if (strcmp(argv[i], "-random") == 0) {
        aa_remove(i, argc, argv);
        if (*argc == i) {
        fprintf(stderr, "Random dithering value expected\n");
        return (0);
        }
        r->randomval = atol(argv[i]);
        aa_remove(i, argc, argv);
        i--;
    } else if (strcmp(argv[i], "-bright") == 0) {
        aa_remove(i, argc, argv);
        if (*argc == i) {
        fprintf(stderr, "Bright value expected(0-255)\n");
        return (0);
        }
        r->bright = atol(argv[i]);
        aa_remove(i, argc, argv);
        i--;
    } else if (strcmp(argv[i], "-contrast") == 0) {
        aa_remove(i, argc, argv);
        if (*argc == i) {
        fprintf(stderr, "Contrast value expected(0-255)\n");
        return (0);
        }
        r->contrast = atol(argv[i]);
        aa_remove(i, argc, argv);
        i--;
    } else if (strcmp(argv[i], "-width") == 0) {
        aa_remove(i, argc, argv);
        if (*argc == i) {
        fprintf(stderr, "width expected\n");
        return (0);
        }
        p->width = atol(argv[i]);
        aa_remove(i, argc, argv);
        i--;
    } else if (strcmp(argv[i], "-recwidth") == 0) {
        aa_remove(i, argc, argv);
        if (*argc == i) {
        fprintf(stderr, "width expected\n");
        return (0);
        }
        p->recwidth = atol(argv[i]);
        aa_remove(i, argc, argv);
        i--;
    } else if (strcmp(argv[i], "-minwidth") == 0) {
        aa_remove(i, argc, argv);
        if (*argc == i) {
        fprintf(stderr, "width expected\n");
        return (0);
        }
        p->minwidth = atol(argv[i]);
        aa_remove(i, argc, argv);
        i--;
    } else if (strcmp(argv[i], "-maxwidth") == 0) {
        aa_remove(i, argc, argv);
        if (*argc == i) {
        fprintf(stderr, "width expected\n");
        return (0);
        }
        p->maxwidth = atol(argv[i]);
        aa_remove(i, argc, argv);
        i--;
    } else if (strcmp(argv[i], "-height") == 0) {
        aa_remove(i, argc, argv);
        if (*argc == i) {
        fprintf(stderr, "height expected\n");
        return (0);
        }
        p->height = atol(argv[i]);
        aa_remove(i, argc, argv);
        i--;
    } else if (strcmp(argv[i], "-recheight") == 0) {
        aa_remove(i, argc, argv);
        if (*argc == i) {
        fprintf(stderr, "height expected\n");
        return (0);
        }
        p->recheight = atol(argv[i]);
        aa_remove(i, argc, argv);
        i--;
    } else if (strcmp(argv[i], "-minheight") == 0) {
        aa_remove(i, argc, argv);
        if (*argc == i) {
        fprintf(stderr, "height expected\n");
        return (0);
        }
        p->minheight = atol(argv[i]);
        aa_remove(i, argc, argv);
        i--;
    } else if (strcmp(argv[i], "-maxheight") == 0) {
        aa_remove(i, argc, argv);
        if (*argc == i) {
        fprintf(stderr, "height expected\n");
        return (0);
        }
        p->maxheight = atol(argv[i]);
        aa_remove(i, argc, argv);
        i--;
    } else if (strcmp(argv[i], "-gamma") == 0) {
        aa_remove(i, argc, argv);
        if (*argc == i) {
        fprintf(stderr, "Gamma value expected\n");
        return (0);
        }
        r->gamma = atof(argv[i]);
        aa_remove(i, argc, argv);
        i--;
    } else if (strcmp(argv[i], "-dimmul") == 0) {
        aa_remove(i, argc, argv);
        if (*argc == i) {
        fprintf(stderr, "Dimmul value expected\n");
        return (0);
        }
        p->dimmul = atof(argv[i]);
        aa_remove(i, argc, argv);
        i--;
    } else if (strcmp(argv[i], "-boldmul") == 0) {
        aa_remove(i, argc, argv);
        if (*argc == i) {
        fprintf(stderr, "Dimmul value expected\n");
        return (0);
        }
        p->boldmul = atof(argv[i]);
        aa_remove(i, argc, argv);
        i--;
    } else if (strcmp(argv[i], "-driver") == 0) {
        aa_remove(i, argc, argv);
        if (*argc == i) {
        fprintf(stderr, "Driver name expected\n");
        return (0);
        }
        aa_recommendhidisplay(argv[i]);
        aa_remove(i, argc, argv);
        i--;
    } else if (strcmp(argv[i], "-kbddriver") == 0) {
        aa_remove(i, argc, argv);
        if (*argc == i) {
        fprintf(stderr, "Driver name expected\n");
        return (0);
        }
        aa_recommendhikbd(argv[i]);
        aa_remove(i, argc, argv);
        i--;
    } else if (strcmp(argv[i], "-mousedriver") == 0) {
        aa_remove(i, argc, argv);
        if (*argc == i) {
        fprintf(stderr, "Driver name expected\n");
        return (0);
        }
        aa_recommendhimouse(argv[i]);
        aa_remove(i, argc, argv);
        i--;
    }
    }
    return (1);
}
static void parseenv(struct aa_hardware_params *p, aa_renderparams * r)
{
    char *env;
    int argc = 1;
    int i;
    char *argv[256], *argv1[256];
    inparse = 1;
    env = getenv("AAOPTS");
    if (env == NULL)
    return;
    if (env[0]) {
    for (i = 0; i < strlen(env) - 1; i++) {
        int s;
        char stop = ' ';
        while (env[i] == ' ')
        i++;
        if (env[i] == '"')
        i++, stop = '"';
        s = i;
        while (i < strlen(env) && env[i] != stop)
        i++;
        if (i - s) {
        argv1[argc] = argv[argc] = malloc(i - s);
        strncpy(argv[argc], env + s, i - s);
        argc++;
        if (argc == 255)
            break;
        }
    }
    }
    i = argc;
    if (i != 1) {
    aa_parseoptions(p, r, &i, argv);
    for (i = 1; i < argc; i++)
        free(argv1[i]);
    }
    inparse = 0;
}