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mes.c: support whitespace characters.

This commit is contained in:
Jan Nieuwenhuizen 2016-07-24 23:41:16 +02:00
parent 60a7c9099f
commit 87678add4a
1 changed files with 25 additions and 6 deletions
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31
mes.c
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@ -105,6 +105,15 @@ scm symbol_define = {SYMBOL, "define"};
scm symbol_define_macro = {SYMBOL, "define-macro"};
scm symbol_set_x = {SYMBOL, "set!"};
scm char_nul = {CHAR, .name="nul", .value=0};
scm char_backspace = {CHAR, .name="backspace", .value=8};
scm char_tab = {CHAR, .name="tab", .value=9};
scm char_newline = {CHAR, .name="newline", .value=10};
scm char_vt = {CHAR, .name="vt", .value=11};
scm char_page = {CHAR, .name="page", .value=12};
scm char_return = {CHAR, .name="return", .value=13};
scm char_space = {CHAR, .name="space", .value=32};
// PRIMITIVES
scm *
@ -848,9 +857,14 @@ display_helper (scm *x, bool cont, char *sep, bool quote)
{
scm *r;
printf ("%s", sep);
if (x->type == CHAR && x->value == 9) printf ("#\\%s", "tab");
else if (x->type == CHAR && x->value == 10) printf ("#\\%s", "newline");
else if (x->type == CHAR && x->value == 32) printf ("#\\%s", "space");
if (x->type == CHAR && x->value == char_nul.value) printf ("#\\%s", char_nul.name);
else if (x->type == CHAR && x->value == char_backspace.value) printf ("#\\%s", char_backspace.name);
else if (x->type == CHAR && x->value == char_tab.value) printf ("#\\%s", char_tab.name);
else if (x->type == CHAR && x->value == char_newline.value) printf ("#\\%s", char_newline.name);
else if (x->type == CHAR && x->value == char_vt.value) printf ("#\\%s", char_vt.name);
else if (x->type == CHAR && x->value == char_page.value) printf ("#\\%s", char_page.name);
else if (x->type == CHAR && x->value == char_return.value) printf ("#\\%s", char_return.name);
else if (x->type == CHAR && x->value == char_space.value) printf ("#\\%s", char_space.name);
else if (x->type == CHAR) printf ("#\\%c", x->value);
else if (x->type == MACRO) {
printf ("(*macro* ");
@ -1025,9 +1039,14 @@ read_character ()
*p++ = getchar ();
}
*p = 0;
if (!strcmp (buf, "tab")) c = 9;
else if (!strcmp (buf, "newline")) c = 10;
else if (!strcmp (buf, "space")) c = 32;
if (!strcmp (buf, char_nul.name)) c = char_nul.value;
else if (!strcmp (buf, char_backspace.name)) c = char_backspace.value;
else if (!strcmp (buf, char_tab.name)) c = char_tab.value;
else if (!strcmp (buf, char_newline.name)) c = char_newline.value;
else if (!strcmp (buf, char_vt.name)) c = char_vt.value;
else if (!strcmp (buf, char_page.name)) c = char_page.value;
else if (!strcmp (buf, char_return.name)) c = char_return.value;
else if (!strcmp (buf, char_space.name)) c = char_space.value;
else {
fprintf (stderr, "char not supported: %s\n", buf);
assert (!"char not supported");