Third commit

Signed-off-by: Mattias Andrée <maandree@kth.se>

3 files changed, 254 insertions, 0 deletions

diff --git a/devtools/.gitignore b/devtools/.gitignore
new file mode 100644
index 0000000..e2d9408
--- /dev/null
+++ b/devtools/.gitignore
@@ -0,0 +1,2 @@
+/clean-c
+/list-c-types
diff --git a/devtools/clean-c.c b/devtools/clean-c.c
new file mode 100644
index 0000000..2f56087
--- /dev/null
+++ b/devtools/clean-c.c
@@ -0,0 +1,92 @@
+/* See LICENSE file for copyright and license details. */
+#include <errno.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+
+static char quote = 0;
+static char comment = 0;
+
+static size_t
+clean(char *text, size_t len)
+{
+	char *w = text;
+	size_t off;
+
+	for (off = 0; off < len; off++) {
+		if (comment == '/') {
+			if (text[off] == '\n')
+				comment = 0;
+		} else if (comment == '*') {
+			if (text[off] == '*' && off + 1 < len && text[off + 1] == '/') {
+				comment = 0;
+				off += 1;
+			}
+		} else {
+			*w++ = text[off];
+			switch (text[off]) {
+			case '\"':
+			case '\'':
+				quote = quote == text[off] ? 0 : text[off];
+				break;
+
+			case '\\':
+				if (off + 1 < len) {
+					off++;
+					w -= !!quote;
+					*w++ = text[off] == '\n' ? ' ' : text[off];
+				}
+				break;
+
+			case '/':
+				if (off + 1 < len) {
+					if (text[off + 1] == '*' || text[off + 1] == '/') {
+						comment = text[off++ + 1];
+						w[-1] = ' ';
+					}
+				}
+				break;
+
+			default:
+				break;
+			}
+		}
+	}
+
+	return (size_t)(w - text);
+}
+
+int
+main(int argc, char *argv[])
+{
+	char buf[8 << 10];
+	size_t size, off;
+	ssize_t r;
+
+	(void) argc;
+
+	for (;;) {
+		r = read(STDIN_FILENO, buf, sizeof(buf));
+		if (r <= 0) {
+			if (!r)
+				break;
+			if (errno == EINTR)
+				continue;
+			perror(argv[0]);
+			return 1;
+		}
+		size = clean(buf, (size_t)r);
+		for (off = 0; off < size; off += (size_t)r) {
+			r = write(STDOUT_FILENO, &buf[off], size - off);
+			if (r <= 0) {
+				if (errno == EINTR)
+					continue;
+				perror(argv[0]);
+				return 1;
+			}
+		}
+	}
+
+	return 0;
+}
diff --git a/devtools/list-c-types.c b/devtools/list-c-types.c
new file mode 100644
index 0000000..ec37a53
--- /dev/null
+++ b/devtools/list-c-types.c
@@ -0,0 +1,160 @@
+/* See LICENSE file for copyright and license details. */
+#include <ctype.h>
+#include <errno.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+
+static char quote = 0;
+static int in_name = 0;
+static size_t typedef_keyword = 0;
+static size_t struct_keyword = 0;
+static size_t union_keyword = 0;
+static size_t enum_keyword = 0;
+static int printing = 0;
+static size_t levels = 0;
+static size_t brackets = 0;
+
+static size_t
+extract(char *text, size_t len, int *outputln)
+{
+	const char *keyword;
+	char *w = text, c;
+	size_t off;
+
+	*outputln = 0;
+
+	for (off = 0; off < len; off++) {
+		if (!text[off])
+			text[off] = ' ';
+
+		if (printing) {
+			*w++ = text[off];
+			levels += text[off] == '{';
+			levels -= text[off] == '}';
+			if (!levels && text[off] == ';') {
+				if ((size_t)(w - text) == len)
+					*outputln = 1;
+				else
+					*w++ = '\n';
+				printing = 0;
+			}
+			continue;
+		}
+
+		switch (text[off]) {
+		case '\"':
+		case '\'':
+			in_name = 0;
+			quote = quote == text[off] ? 0 : text[off];
+			break;
+
+		case '\\':
+			off++;
+			break;
+
+		default:
+			if (quote)
+				break;
+
+			brackets += text[off] == '(' || text[off] == '[' || text[off] == '{';
+			brackets -= text[off] == ')' || text[off] == ']' || text[off] == '}';
+			if (brackets)
+				break;
+
+			if (!"typedef"[typedef_keyword]) {
+				keyword = "typedef";
+				goto found_keyword;
+			} else if (!"struct"[struct_keyword]) {
+				keyword = "struct";
+				goto found_keyword;
+			} else if (!"union"[union_keyword]) {
+				keyword = "union";
+				goto found_keyword;
+			} else if (!"enum"[enum_keyword]) {
+				keyword = "enum";
+				goto found_keyword;
+			} else if (!in_name) {
+				if (text[off] != "typedef"[typedef_keyword++])
+					typedef_keyword = 0;
+				if (text[off] != "struct"[struct_keyword++])
+					struct_keyword = 0;
+				if (text[off] != "union"[union_keyword++])
+					union_keyword = 0;
+				if (text[off] != "enum"[enum_keyword++])
+					enum_keyword = 0;
+				if (typedef_keyword || struct_keyword || union_keyword || enum_keyword)
+					break;
+			}
+
+			if (isalnum(text[off]) || text[off] == '_')
+				in_name = 1;
+			else
+				goto not_alnum;
+
+			break;
+		found_keyword:
+			if (isalnum(text[off]) || text[off] == '_') {
+				in_name = 1;
+				goto reset_keyword;
+			}
+			c = text[off];
+			w = stpcpy(w, keyword);
+			*w++ = c;
+			printing = 1;
+		not_alnum:
+			in_name = 0;
+		reset_keyword:
+			typedef_keyword = 0;
+			struct_keyword = 0;
+			union_keyword = 0;
+			enum_keyword = 0;
+			break;
+		}
+	}
+
+	return (size_t)(w - text);
+}
+
+int
+main(int argc, char *argv[])
+{
+	char buf[8 << 10];
+	size_t size, off;
+	ssize_t r;
+	int outputln = 0;
+
+	(void) argc;
+
+	for (;;) {
+		r = read(STDIN_FILENO, buf, sizeof(buf));
+		if (r <= 0) {
+			if (!r)
+				break;
+			if (errno == EINTR)
+				continue;
+			perror(argv[0]);
+			return 1;
+		}
+		size = extract(buf, (size_t)r, &outputln);
+	write_again:
+		for (off = 0; off < size; off += (size_t)r) {
+			r = write(STDOUT_FILENO, &buf[off], size - off);
+			if (r <= 0) {
+				if (errno == EINTR)
+					continue;
+				perror(argv[0]);
+				return 1;
+			}
+		}
+		if (outputln) {
+			outputln = 0;
+			buf[0] = '\n';
+			size = 1;
+			goto write_again;
+		}
+	}
+
+	return 0;
+}