/** @file lib/macros-builtin.c
* @brief Built-in expansions
*
- * This is a grab-bag of non-domain-specific expansions. Note that
- * documentation will be generated from the comments at the head of
- * each function.
+ * This is a grab-bag of non-domain-specific expansions. Documentation will be
+ * generated from the comments at the head of each function.
*/
#include <config.h>
#include <errno.h>
#include <assert.h>
#include <unistd.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include "mem.h"
#include "macros.h"
#include "sink.h"
#include "syscalls.h"
#include "log.h"
#include "wstat.h"
#include "kvp.h"
+#include "hash.h"
+#include "split.h"
+#include "printf.h"
+#include "vector.h"
+
+static struct vector include_path;
/** @brief Return 1 if @p s is 'true' else 0 */
int mx_str2bool(const char *s) {
return n ? "true" : "false";
}
-/* @include{TEMPLATE}@
+/** @brief Write a boolean result */
+static int mx_bool_result(struct sink *output, int result) {
+ if(sink_writes(output, mx_bool2str(result)) < 0)
+ return -1;
+ else
+ return 0;
+}
+
+/* @include{TEMPLATE}
+ *
+ * Includes TEMPLATE.
+ *
+ * TEMPLATE can be an absolute filename starting with a '/'; only the file with
+ * exactly this name will be included.
+ *
+ * Alternatively it can be a relative filename, not starting with a '/'. In
+ * this case the file will be searched for in the include path. When searching
+ * paths, unreadable files are treated as if they do not exist (rather than
+ * matching then producing an error).
*
- * Includes TEMPLATE as if its text were substituted for the @include
- * expansion. TODO
+ * If the name chosen ends ".tmpl" then the file will be expanded as a
+ * template. Anything else is included byte-for-byte without further
+ * modification.
+ *
+ * Only regular files are allowed (no devices, sockets or name pipes).
*/
static int exp_include(int attribute((unused)) nargs,
- char attribute((unused)) **args,
- struct sink attribute((unused)) *output,
- void attribute((unused)) *u) {
- assert(!"TODO implement search path");
+ char **args,
+ struct sink *output,
+ void *u) {
+ const char *name = args[0];
+ char *path;
+ int fd, n;
+ char buffer[4096];
+ struct stat sb;
+
+ if(name[0] == '/') {
+ if(access(name, O_RDONLY) < 0) {
+ error(errno, "cannot read template %s", name);
+ if(sink_printf(output, "[[cannot open template '%s']]", name) < 0)
+ return -1;
+ return -3;
+ }
+ path = xstrdup(name);
+ } else {
+ int n;
+
+ /* Search the include path */
+ for(n = 0; n < include_path.nvec; ++n) {
+ byte_xasprintf(&path, "%s/%s", include_path.vec[n], name);
+ if(access(path, O_RDONLY) == 0)
+ break;
+ }
+ if(n >= include_path.nvec) {
+ error(0, "cannot find template '%s'", name);
+ if(sink_printf(output, "[[cannot find template '%s']]", name) < 0)
+ return -1;
+ return -3;
+ }
+ }
+ /* If it's a template expand it */
+ if(strlen(path) >= 5 && !strncmp(path + strlen(path) - 5, ".tmpl", 5))
+ return mx_expand_file(path, output, u);
+ /* Read the raw file. As with mx_expand_file() we insist that the file is a
+ * regular file. */
+ if((fd = open(path, O_RDONLY)) < 0)
+ fatal(errno, "error opening %s", path);
+ if(fstat(fd, &sb) < 0)
+ fatal(errno, "error statting %s", path);
+ if(!S_ISREG(sb.st_mode))
+ fatal(0, "%s: not a regular file", path);
+ while((n = read(fd, buffer, sizeof buffer)) > 0) {
+ if(sink_write(output, buffer, n) < 0) {
+ xclose(fd);
+ return -1;
+ }
+ }
+ if(n < 0)
+ fatal(errno, "error reading %s", path);
+ xclose(fd);
+ return 0;
}
/* @include{COMMAND}
char *s;
int rc;
- if((rc = mx_expandstr(args[0], &s, u)))
+ if((rc = mx_expandstr(args[0], &s, u, "argument #0 (CONDITION)")))
return rc;
if(mx_str2bool(s))
return mx_expand(args[1], output, u);
struct sink *output,
void *u) {
int n, result = 1, rc;
- char *s;
+ char *s, *argname;
for(n = 0; n < nargs; ++n) {
- if((rc = mx_expandstr(args[n], &s, u)))
+ byte_xasprintf(&argname, "argument #%d", n);
+ if((rc = mx_expandstr(args[n], &s, u, argname)))
return rc;
if(!mx_str2bool(s)) {
result = 0;
break;
}
}
- if(sink_writes(output, mx_bool2str(result)) < 0)
- return -1;
- else
- return 0;
+ return mx_bool_result(output, result);
}
/* @or{BRANCH}{BRANCH}...
struct sink *output,
void *u) {
int n, result = 0, rc;
- char *s;
+ char *s, *argname;
for(n = 0; n < nargs; ++n) {
- if((rc = mx_expandstr(args[n], &s, u)))
+ byte_xasprintf(&argname, "argument #%d", n);
+ if((rc = mx_expandstr(args[n], &s, u, argname)))
return rc;
if(mx_str2bool(s)) {
result = 1;
break;
}
}
- if(sink_writes(output, mx_bool2str(result)) < 0)
- return -1;
- else
- return 0;
+ return mx_bool_result(output, result);
}
/* @not{CONDITION}
char **args,
struct sink *output,
void attribute((unused)) *u) {
- if(sink_writes(output, mx_bool2str(!mx_str2bool(args[0]))) < 0)
- return -1;
- else
- return 0;
+ return mx_bool_result(output, !mx_str2bool(args[0]));
}
/* @#{...}
return 0;
}
+/* @eq{S1}{S2}...
+ *
+ * Expands to "true" if all the arguments are identical, otherwise to "false"
+ * (i.e. if any pair of arguments differs).
+ *
+ * If there are no arguments then expands to "true". Evaluates all arguments
+ * (with their side effects) even if that's not strictly necessary to discover
+ * the result.
+ */
+static int exp_eq(int nargs,
+ char **args,
+ struct sink *output,
+ void attribute((unused)) *u) {
+ int n, result = 1;
+
+ for(n = 1; n < nargs; ++n) {
+ if(strcmp(args[n], args[0])) {
+ result = 0;
+ break;
+ }
+ }
+ return mx_bool_result(output, result);
+}
+
+/* @ne{S1}{S2}...
+ *
+ * Expands to "true" if all of the arguments differ from one another, otherwise
+ * to "false" (i.e. if any value appears more than once).
+ *
+ * If there are no arguments then expands to "true". Evaluates all arguments
+ * (with their side effects) even if that's not strictly necessary to discover
+ * the result.
+ */
+static int exp_ne(int nargs,
+ char **args,
+ struct sink *output,
+ void attribute((unused))*u) {
+ hash *h = hash_new(sizeof (char *));
+ int n, result = 1;
+
+ for(n = 0; n < nargs; ++n)
+ if(hash_add(h, args[n], "", HASH_INSERT)) {
+ result = 0;
+ break;
+ }
+ return mx_bool_result(output, result);
+}
+
+/* @discard{...}
+ *
+ * Expands to nothing. Unlike the comment expansion @#{...}, side effects of
+ * arguments are not suppressed. So this can be used to surround a collection
+ * of macro definitions with whitespace, free text commentary, etc.
+ */
+static int exp_discard(int attribute((unused)) nargs,
+ char attribute((unused)) **args,
+ struct sink attribute((unused)) *output,
+ void attribute((unused)) *u) {
+ return 0;
+}
+
+/* @define{NAME}{ARG1 ARG2...}{DEFINITION}
+ *
+ * Define a macro. The macro will be called NAME and will act like an
+ * expansion. When it is expanded, the expansion is replaced by DEFINITION,
+ * with each occurence of @ARG1@ etc replaced by the parameters to the
+ * expansion.
+ */
+static int exp_define(int attribute((unused)) nargs,
+ const struct mx_node **args,
+ struct sink attribute((unused)) *output,
+ void attribute((unused)) *u) {
+ char **as, *name, *argnames;
+ int rc, nas;
+
+ if((rc = mx_expandstr(args[0], &name, u, "argument #0 (NAME)")))
+ return rc;
+ if((rc = mx_expandstr(args[1], &argnames, u, "argument #1 (ARGS)")))
+ return rc;
+ as = split(argnames, &nas, 0, 0, 0);
+ mx_register_macro(name, nas, as, args[2]);
+ return 0;
+}
+
void mx_register_builtin(void) {
+ mx_register_magic("#", 0, INT_MAX, exp_comment);
+ mx_register_magic("and", 0, INT_MAX, exp_and);
+ mx_register_magic("define", 3, 3, exp_define);
+ mx_register_magic("if", 2, 3, exp_if);
+ mx_register_magic("or", 0, INT_MAX, exp_or);
+ mx_register("discard", 0, INT_MAX, exp_discard);
+ mx_register("eq", 0, INT_MAX, exp_eq);
mx_register("include", 1, 1, exp_include);
- mx_register("shell", 1, 1, exp_shell);
- mx_magic_register("if", 2, 3, exp_if);
- mx_magic_register("and", 0, INT_MAX, exp_and);
- mx_magic_register("or", 0, INT_MAX, exp_or);
+ mx_register("ne", 0, INT_MAX, exp_ne);
mx_register("not", 1, 1, exp_not);
- mx_magic_register("#", 0, INT_MAX, exp_comment);
+ mx_register("shell", 1, 1, exp_shell);
mx_register("urlquote", 1, 1, exp_urlquote);
- /* TODO: eq */
- /* TODO: ne */
- /* TODO: define */
- /* TODO: discard */
}
/*
#include "hash.h"
#include "sink.h"
#include "syscalls.h"
+#include "printf.h"
VECTOR_TYPE(mx_node_vector, const struct mx_node *, xrealloc);
/** @brief Maximum permitted arguments */
int max;
- /** @brief Flags */
+ /** @brief Flags
+ *
+ * See:
+ * - @ref EXP_SIMPLE
+ * - @ref EXP_MAGIC
+ * - @ref EXP_MACRO
+ * - @ref EXP_TYPE_MASK
+ */
unsigned flags;
- /** @brief Callback (cast to appropriate type) */
+ /** @brief Macro argument names */
+ char **args;
+
+ /** @brief Callback (cast to appropriate type)
+ *
+ * Cast to @ref mx_simple_callback or @ref mx_magic_callback as required. */
void (*callback)();
+
+ /** @brief Macro definition
+ *
+ * Only for @ref EXP_MACRO expansions. */
+ const struct mx_node *definition;
};
-/** @brief Expansion takes parsed templates, not strings */
+/** @brief Expansion takes pre-expanded strings
+ *
+ * @p callback is cast to @ref mx_simple_callback. */
+#define EXP_SIMPLE 0x0000
+
+/** @brief Expansion takes parsed templates, not strings
+ *
+ * @p callback is cast to @ref mx_magic_callback. The callback must do its own
+ * expansion e.g. via mx_expandstr() where necessary. */
#define EXP_MAGIC 0x0001
+/** @brief Expansion is a macro */
+#define EXP_MACRO 0x0002
+
+/** @brief Mask of types */
+#define EXP_TYPE_MASK 0x0003
+
+/** @brief Hash of all expansions
+ *
+ * Created by mx_register(), mx_register_macro() or mx_register_magic().
+ */
static hash *expansions;
+static int mx__expand_macro(const struct expansion *e,
+ const struct mx_node *m,
+ struct sink *output,
+ void *u);
+
/* Parsing ------------------------------------------------------------------ */
/** @brief Parse a template
/* Expansion registration --------------------------------------------------- */
-static void mx__register(unsigned flags,
- const char *name,
- int min,
- int max,
- void (*callback)()) {
+static int mx__register(unsigned flags,
+ const char *name,
+ int min,
+ int max,
+ char **args,
+ void (*callback)(),
+ const struct mx_node *definition) {
struct expansion e[1];
if(!expansions)
e->min = min;
e->max = max;
e->flags = flags;
+ e->args = args;
e->callback = callback;
- hash_add(expansions, name, &e, HASH_INSERT_OR_REPLACE);
+ e->definition = definition;
+ return hash_add(expansions, name, &e,
+ ((flags & EXP_TYPE_MASK) == EXP_MACRO)
+ ? HASH_INSERT : HASH_INSERT_OR_REPLACE);
}
/** @brief Register a simple expansion rule
int min,
int max,
mx_simple_callback *callback) {
- mx__register(0, name, min, max, (void (*)())callback);
+ mx__register(EXP_SIMPLE, name, min, max, 0, (void (*)())callback, 0);
}
/** @brief Register a magic expansion rule
* @param max Maximum number of arguments
* @param callback Callback to write output
*/
-void mx_magic_register(const char *name,
+void mx_register_magic(const char *name,
int min,
int max,
mx_magic_callback *callback) {
- mx__register(EXP_MAGIC, name, min, max, (void (*)())callback);
+ mx__register(EXP_MAGIC, name, min, max, 0, (void (*)())callback, 0);
+}
+
+/** @brief Register a macro
+ * @param name Name
+ * @param nargs Number of arguments
+ * @param args Argument names
+ * @param definition Macro definition
+ * @return 0 on success, negative on error
+ */
+int mx_register_macro(const char *name,
+ int nargs,
+ char **args,
+ const struct mx_node *definition) {
+ if(mx__register(EXP_MACRO, name, nargs, nargs, args, 0/*callback*/,
+ definition)) {
+ /* This locates the error to the definition, which may be a line or two
+ * beyond the @define command itself. The backtrace generated by
+ * mx_expand() may help more. */
+ error(0, "%s:%d: duplicate definition of '%s'",
+ definition->filename, definition->line, name);
+ return -2;
+ }
+ return 0;
}
/* Expansion ---------------------------------------------------------------- */
* @param m Where to start
* @param output Where to send output
* @param u User data
- * @return 0 on success, non-0 on error∑
+ * @return 0 on success, non-0 on error
+ *
+ * Interpretation of return values:
+ * - 0 means success
+ * - -1 means an error writing to the sink.
+ * - other negative values mean errors generated from with the macro
+ * expansion system
+ * - positive values are reserved for the application
*
- * If a sink write fails then -1 is returned. If any callback returns non-zero
- * then that value is returned. It is suggested that callbacks adopt this
- * policy too and use positive values to mean other kinds of fatal error.
+ * If any callback returns non-zero then that value is returned, abandoning
+ * further expansion.
*/
int mx_expand(const struct mx_node *m,
struct sink *output,
return -1;
break;
case MX_EXPANSION:
+ rc = 0;
if(!(e = hash_find(expansions, m->name))) {
error(0, "%s:%d: unknown expansion name '%s'",
m->filename, m->line, m->name);
m->filename, m->line, m->name, e->max, m->nargs);
if(sink_printf(output, "[[%s too many args]]", m->name) < 0)
return -1;
- } else if(e->flags & EXP_MAGIC) {
- /* Magic callbacks we can call directly */
- if((rc = ((mx_magic_callback *)e->callback)(m->nargs,
- m->args,
- output,
- u)))
- return rc;
- } else {
- /* For simple callbacks we expand their arguments for them */
- char **args = xcalloc(1 + m->nargs, sizeof (char *));
- int n;
-
- for(n = 0; n < m->nargs; ++n)
- if((rc = mx_expandstr(m->args[n], &args[n], u)))
- return rc;
- args[n] = NULL;
- if((rc = ((mx_simple_callback *)e->callback)(m->nargs,
+ } else switch(e->flags & EXP_TYPE_MASK) {
+ case EXP_MAGIC: {
+ /* Magic callbacks we can call directly */
+ rc = ((mx_magic_callback *)e->callback)(m->nargs,
+ m->args,
+ output,
+ u);
+ break;
+ }
+ case EXP_SIMPLE: {
+ /* For simple callbacks we expand their arguments for them. */
+ char **args = xcalloc(1 + m->nargs, sizeof (char *)), *argname;
+ int n;
+
+ for(n = 0; n < m->nargs; ++n) {
+ /* Argument numbers are at least clear from looking at the text;
+ * adding names as well would be nice. TODO */
+ byte_xasprintf(&argname, "argument #%d", n);
+ if((rc = mx_expandstr(m->args[n], &args[n], u, argname)))
+ break;
+ }
+ if(!rc) {
+ args[n] = NULL;
+ rc = ((mx_simple_callback *)e->callback)(m->nargs,
args,
output,
- u)))
- return rc;
+ u);
+ }
+ break;
+ }
+ case EXP_MACRO: {
+ /* Macros we expand by rewriting their definition with argument values
+ * substituted and then expanding that. */
+ rc = mx__expand_macro(e, m, output, u);
+ break;
+ }
+ default:
+ assert(!"impossible EXP_TYPE_MASK value");
+ }
+ if(rc) {
+ /* For non-IO errors we generate some backtrace */
+ if(rc != -1)
+ error(0, " ...in '%s' at %s:%d",
+ m->name, m->filename, m->line);
+ return rc;
}
break;
default:
assert(!"invalid m->type");
}
- return mx_expand(m, output, u);
+ return mx_expand(m->next, output, u);
}
/** @brief Expand a template storing the result in a string
* @param m Where to start
* @param sp Where to store string
* @param u User data
+ * @param what Token for backtrace, or NULL
* @return 0 on success, non-0 on error
*
* Same return conventions as mx_expand(). This wrapper is slightly more
*/
int mx_expandstr(const struct mx_node *m,
char **sp,
- void *u) {
+ void *u,
+ const char *what) {
struct dynstr d[1];
int rc;
+ dynstr_init(d);
if(!(rc = mx_expand(m, sink_dynstr(d), u))) {
dynstr_terminate(d);
*sp = d->vec;
- }
+ } else
+ *sp = 0;
+ if(rc && rc != -1 && what)
+ error(0, " ...in %s at %s:%d", what, m->filename, m->line);
return rc;
}
int mx_expand_file(const char *path,
struct sink *output,
void *u) {
- int fd, n;
+ int fd, n, rc;
struct stat sb;
char *b;
off_t sofar;
+ const struct mx_node *m;
if((fd = open(path, O_RDONLY)) < 0)
fatal(errno, "error opening %s", path);
fatal(errno, "error reading %s", path);
}
xclose(fd);
- return mx_expand(mx_parse(path, 1, b, b + sb.st_size),
- output,
- u);
+ m = mx_parse(path, 1, b, b + sb.st_size);
+ rc = mx_expand(m, output, u);
+ if(rc && rc != -1)
+ /* Mention inclusion in backtrace */
+ error(0, " ...in inclusion of file '%s'", path);
+ return rc;
+}
+
+/** @brief Rewrite a parse tree substituting in macro arguments
+ * @param m Parse tree to rewrite (from macro definition)
+ * @param h Hash mapping argument names to argument values
+ * @return Rewritten parse tree
+ */
+static const struct mx_node *mx__rewrite(const struct mx_node *m,
+ hash *h) {
+ const struct mx_node *head = 0, **tailp = &head, *arg, *mm;
+ struct mx_node *nm;
+ int n;
+
+ for(; m; m = m->next) {
+ switch(m->type) {
+ case MX_TEXT:
+ nm = xmalloc(sizeof *nm);
+ *nm = *m; /* Dumb copy of text node fields */
+ nm->next = 0; /* Maintain list structure */
+ *tailp = nm;
+ tailp = (const struct mx_node **)&nm->next;
+ break;
+ case MX_EXPANSION:
+ if(m->nargs == 0
+ && (arg = hash_find(h, m->name))) {
+ /* This expansion has no arguments and its name matches one of the
+ * macro arguments. (Even if it's a valid expansion name we override
+ * it.) We insert its value at this point. We do NOT recursively
+ * rewrite the argument's value - it is outside the lexical scope of
+ * the argument name.
+ *
+ * We need to recreate the list structure but a shallow copy will
+ * suffice here.
+ */
+ for(mm = arg; mm; mm = mm->next) {
+ nm = xmalloc(sizeof *nm);
+ *nm = *mm;
+ nm->next = 0;
+ *tailp = nm;
+ tailp = (const struct mx_node **)&nm->next;
+ }
+ } else {
+ /* This is some other expansion. We recursively rewrite its argument
+ * values according to h. */
+ nm = xmalloc(sizeof *nm);
+ *nm = *mm;
+ for(n = 0; n < nm->nargs; ++n)
+ nm->args[n] = mx__rewrite(m->args[n], h);
+ nm->next = 0;
+ *tailp = nm;
+ tailp = (const struct mx_node **)&nm->next;
+ }
+ break;
+ default:
+ assert(!"invalid m->type");
+ }
+ }
+ *tailp = 0; /* Mark end of list */
+ return head;
+}
+
+/** @brief Expand a macro
+ * @param e Macro definition
+ * @param m Macro expansion
+ * @param output Where to send output
+ * @param u User data
+ * @return 0 on success, non-0 on error
+ */
+static int mx__expand_macro(const struct expansion *e,
+ const struct mx_node *m,
+ struct sink *output,
+ void *u) {
+ hash *h = hash_new(sizeof (struct mx_node *));
+ int n;
+
+ /* We store the macro arguments in a hash. Currently there is no check for
+ * duplicate argument names (and this would be the wrong place for it
+ * anyway); if you do that you just lose in some undefined way. */
+ for(n = 0; n < m->nargs; ++n)
+ hash_add(h, e->args[n], m->args[n], HASH_INSERT);
+ /* Generate a rewritten parse tree */
+ m = mx__rewrite(e->definition, h);
+ /* Expand the result */
+ return mx_expand(m, output, u);
+ /* mx_expand() will update the backtrace */
}
/*
int min,
int max,
mx_simple_callback *callback);
-void mx_magic_register(const char *name,
+void mx_register_magic(const char *name,
int min,
int max,
mx_magic_callback *callback);
+int mx_register_macro(const char *name,
+ int nargs,
+ char **args,
+ const struct mx_node *definition);
void mx_register_builtin(void);
void *u);
int mx_expandstr(const struct mx_node *m,
char **sp,
- void *u);
+ void *u,
+ const char *what);
int mx_str2bool(const char *s);
const char *mx_bool2str(int n);
#define L1 "this is just some\n"
#define L2 "plain text\n"
static const char plain[] = L1 L2;
+ char *s;
+ /* Plain text ------------------------------------------------------------- */
+
/* As simple as it gets */
m = mx_parse("plaintext1", 1, "", NULL);
insist(m == 0);
insist(m->next == 0);
check_string(mx_dump(m), L1);
+ /* Simple macro parsing --------------------------------------------------- */
+
/* The simplest possible expansion */
m = mx_parse("macro1", 1, "@macro@", NULL);
check_integer(m->type, MX_EXPANSION);
* preserved. */
m = mx_parse("macro12", 1, "@macro {@macro2 {arg1} {arg2} }\n", NULL);
check_string(mx_dump(m), "@macro{@macro2{arg1}{arg2}@ }@\n");
+
+ /* Simple expansions ------------------------------------------------------ */
+
+ mx_register_builtin();
+
+#define check_macro(NAME, INPUT, OUTPUT) do { \
+ m = mx_parse(NAME, 1, INPUT, NULL); \
+ check_integer(mx_expandstr(m, &s, 0/*u*/, NAME), 0); \
+ if(s && strcmp(s, OUTPUT)) { \
+ fprintf(stderr, "%s:%d: test %s\n" \
+ " INPUT: %s\n" \
+ " EXPECTED: '%s'\n" \
+ " GOT: '%s'\n", \
+ __FILE__, __LINE__, NAME, INPUT, OUTPUT, s); \
+ count_error(); \
+ } \
+} while(0)
+
+ check_macro("empty", "", "");
+ check_macro("plain", plain, plain);
+
+ check_macro("if1", "@if{true}{yes}{no}", "yes");
+ check_macro("if2", "@if{true}{yes}", "yes");
+ check_macro("if3", "@if{false}{yes}{no}", "no");
+ check_macro("if4", "@if{false}{yes}", "");
+ check_macro("if5", "@if{ true}{yes}", "");
+
+ check_macro("and1", "@and", "true");
+ check_macro("and2", "@and{true}", "true");
+ check_macro("and3", "@and{false}", "false");
+ check_macro("and4", "@and{true}{true}", "true");
+ check_macro("and5", "@and{false}{true}", "false");
+ check_macro("and6", "@and{true}{false}", "false");
+ check_macro("and7", "@and{false}{false}", "false");
+
+ check_macro("or1", "@or", "false");
+ check_macro("or2", "@or{true}", "true");
+ check_macro("or2", "@or{false}", "false");
+ check_macro("or3", "@or{true}{true}", "true");
+ check_macro("or4", "@or{false}{true}", "true");
+ check_macro("or5", "@or{true}{false}", "true");
+ check_macro("or7", "@or{false}{false}", "false");
+
+ check_macro("not1", "@not{true}", "false");
+ check_macro("not2", "@not{false}", "true");
+ check_macro("not3", "@not{wibble}", "true");
+
+ check_macro("comment1", "@#{wibble}", "");
+ check_macro("comment2", "@#{comment with a\nnewline in}", "");
+
+ check_macro("discard1", "@discard{wibble}", "");
+ check_macro("discard2", "@discard{comment with a\nnewline in}", "");
+
+ check_macro("eq1", "@eq", "true");
+ check_macro("eq2", "@eq{}", "true");
+ check_macro("eq3", "@eq{a}", "true");
+ check_macro("eq4", "@eq{a}{a}", "true");
+ check_macro("eq5", "@eq{a}{a}{a}", "true");
+ check_macro("eq7", "@eq{a}{b}", "false");
+ check_macro("eq8", "@eq{a}{b}{a}", "false");
+ check_macro("eq9", "@eq{a}{a}{b}", "false");
+ check_macro("eq10", "@eq{b}{a}{a}", "false");
+
+ check_macro("ne1", "@ne", "true");
+ check_macro("ne2", "@ne{}", "true");
+ check_macro("ne3", "@ne{a}", "true");
+ check_macro("ne4", "@ne{a}{a}", "false");
+ check_macro("ne5", "@ne{a}{a}{a}", "false");
+ check_macro("ne7", "@ne{a}{b}", "true");
+ check_macro("ne8", "@ne{a}{b}{a}", "false");
+ check_macro("ne9", "@ne{a}{a}{b}", "false");
+ check_macro("ne10", "@ne{b}{a}{a}", "false");
+ check_macro("ne11", "@ne{a}{b}{c}", "true");
+
+ check_macro("sh1", "@shell{true}", "");
+ check_macro("sh2", "@shell{echo spong}", "spong\n");
+ fprintf(stderr, "expxect error message from macro expander:\n");
+ check_macro("sh3", "@shell{echo spong;exit 3}", "spong\n");
+
+ check_macro("url1", "@urlquote{unreserved}", "unreserved");
+ check_macro("url2", "@urlquote{has space}", "has%20space");
+ check_macro("url3", "@urlquote{\xc0\xc1}", "%c0%c1");
+
+
}
TEST(macros);
~mdw / disorder / commitdiff