int main(void)
{
macro_list_print();
macro_set("A", "a");
macro_set("B", "bb");
macro_set("C", "ccc");
macro_list_print();
macro_set("B", "dddd");
macro_list_print();
macro_set("A", "eeeee");
macro_list_print();
printf("%s = '%s' (%d)\n", "A", macro_body("A"), macro_length("A"));
printf("%s = '%s' (%d)\n", "B", macro_body("B"), macro_length("B"));
printf("%s = '%s' (%d)\n", "C", macro_body("C"), macro_length("C"));
printf("%s = '%s' (%d)\n", "D", macro_body("D"), macro_length("D"));
char in[4096] = "test.${A}.${B}.${C}.${D}.";
char out[4096];
printf("len %d\n", macro_expand_length(in));
macro_expand(in, out);
printf("%zd %s\n", strlen(in), in);
printf("%zd %s\n", strlen(out), out);
printf("len %d\n", macro_expand_length(in));
macro_set("A", "${B}");
macro_list_print();
printf("len %d\n", macro_expand_length(in));
macro_expand(in, out);
printf("%zd %s\n", strlen(in), in);
printf("%zd %s\n", strlen(out), out);
printf("len %d\n", macro_expand_length(in));
macro_set("A", "body");
macro_set("B", "body body");
macro_set("C", "body body body");
macro_set("D", "enough already!");
macro_list_print();
printf("len %d\n", macro_expand_length(in));
macro_expand(in, out);
printf("%zd %s\n", strlen(in), in);
printf("%zd %s\n", strlen(out), out);
printf("len %d\n", macro_expand_length(in));
return 0;
}
static void read_lines(char *filename, FILE *fp)
{
verify(filename != NULL, "null arg filename");
verify(filename[0] != '\0', "empty arg filename");
verify(fp != NULL, "null arg fp");
if (verbose > 0)
{ fprintf(stderr, "%s: read_lines(%s)\n", prog, filename); }
char original[MAXLINE+2]; // from fgets()
char expanded[MAXLINE+2]; // after macro expansion
char buffer[MAXLINE+2]; // working copy, safe to modify
char whsp[] = " \t\n\v\f\r"; // whitespace characters
int line_number = 0;
int recipe_line_number = 0;
while (fgets(original, MAXLINE, fp) != NULL) {
// it is possible that the input line was too long, so terminate the string cleanly
original[MAXLINE] = '\n';
original[MAXLINE+1] = '\0';
line_number++;
if (verbose > 0) printf("%s: %s: line %d: %s", prog, filename, line_number, original);
// assume original[] is constructed properly
// assume expanded[] is large enough
macro_expand(original, expanded);
if (verbose > 0) printf("%s: %s: line %d: %s", prog, filename, line_number, expanded);
strcpy(buffer, expanded); // copy, safe to modify
char *buf = buffer;
while (*buf == ' ') buf++; // skip past leading spaces (not tabs!)
char *p_hash = strchr(buf, '#'); // a comment starts with #
if (p_hash != NULL)
{ *p_hash = '\0'; } // remove the comment
int n = 0; // remove trailing whitespace
while (buf[n] != '\0')
{
int n1 = strspn(&buf[n], whsp); // buf[n .. n+n1-1] is whitespace
int n2 = strcspn(&buf[n + n1], whsp); // buf[n+n1 .. n+n1+n2-1] is not
if (n2 == 0) { buf[n] = '\0'; break; } // remove trailing whitespace
n += n1 + n2;
}
if (buf[0] == '\0') // nothing left?
{ continue; }
char *p_colon = strchr(buf, ':'); // : indicates a target-prerequisite line
char *p_equal = strchr(buf, '='); // = indicates a macro definition
if (buffer[0] == '\t')
{
recipe_line_number++;
if (verbose > 0) printf(" >>> recipe line %d\n", recipe_line_number);
// (save this for a later project)
}
else if (p_colon != NULL)
{
recipe_line_number = 0;
if (verbose > 0) printf(" >>> target-prerequisite\n");
// (save this for a later project)
}
else if (p_equal != NULL)
{
if (verbose > 0) printf(" >>> macro definition\n");
// name = body
// *p_equal is '='
char *name_start = buf;
while (*name_start == ' ' || *name_start == '\t') // skip past spaces and tabs
{ name_start++; }
char *name_end = p_equal-1;
while (*name_end == ' ' || *name_end == '\t')
{ name_end--; }
name_end++;
*name_end = '\0';
char *body_start = p_equal+1;
while (*body_start == ' ' || *body_start == '\t')
{ body_start++; }
char *body_end = body_start;
while (*body_end != '\0') // end of string
{ body_end++; }
while (*body_end == ' ' || *body_end == '\t')
{ body_end--; }
body_end++;
*body_end = '\0';
if (verbose > 1) macro_list_print();
macro_set(name_start, body_start);
if (verbose > 1) macro_list_print();
}
else if (strncmp("include", buf, 7) == 0)
{
if (verbose > 0) printf(" >>> include\n");
char *name_start = buf + 7; // skip past "include"
while (*name_start == ' ' || *name_start == '\t') // skip past spaces and tabs
{ name_start++; }
if (*name_start == '\0')
{
// following GNU Make, this is not an error
if (verbose > 0) fprintf(stderr, "%s: %s: line %d: include but no filename\n", prog, filename, line_number);
continue;
}
else if (*name_start == '\'' || *name_start == '"') // quoted filename
{
// find matching quote, remove it
char *q = name_start + 1; // skip past ' or "
while (*q != *name_start && *q != '\0') q++; // find end of string or line
if (*q == '\0')
{
fprintf(stderr, "%s: %s: line %d: file name error: >>>%s<<<\n", prog, filename, line_number, name_start);
continue;
}
name_start++; // skip past opening quote
*q = '\0'; // remove closing quote
}
read_file(name_start, 0);
}
else
{
if (verbose > 0) printf(" >>> something else\n");
fprintf(stderr, "%s: %s: line %d: not recognized: %s", prog, filename, line_number, original);
}
}
if (ferror(fp)) // error when reading the file
{ fprintf(stderr, "%s: %s: read error: %s\n", prog, filename, strerror(errno)); }
return;
}
static void read_lines(char *filename, FILE *fp)
{
verify(filename != NULL, "null arg filename");
verify(filename[0] != '\0', "empty arg filename");
verify(fp != NULL, "null arg fp");
fprintf(stderr, "%s: read_lines(%s)\n", prog, filename);
char original[MAXLINE+2]; // from fgets()
char expanded[MAXLINE+2]; // after macro expansion
char buffer[MAXLINE+2]; // working copy, safe to modify
char whsp[] = " \t\n\v\f\r"; // whitespace characters
int line_number = 0;
int recipe_line_number = 0;
while (fgets(original, MAXLINE, fp) != NULL) {
// it is possible that the input line was too long, so terminate the string cleanly
original[MAXLINE] = '\n';
original[MAXLINE+1] = '\0';
line_number++;
//printf("%s: %s: line %d: %s", prog, filename, line_number, original);
// assume original[] is constructed properly
// assume expanded[] is large enough
macro_expand(original, expanded);
printf("%s: %s: line %d: %s", prog, filename, line_number, expanded);
strcpy(buffer, expanded); // copy, safe to modify
char *buf = buffer;
while (*buf == ' ') buf++; // skip past leading spaces (not tabs!)
char *p_hash = strchr(buf, '#'); // a comment starts with #
if (p_hash != NULL) {
*p_hash = '\0';
} // remove the comment
int n = 0; // remove trailing whitespace
while (buf[n] != '\0'){
int n1 = strspn(&buf[n], whsp); // buf[n .. n+n1-1] is whitespace
int n2 = strcspn(&buf[n + n1], whsp); // buf[n+n1 .. n+n1+n2-1] is not
if (n2 == 0) {
buf[n] = '\0'; break; } // remove trailing whitespace
n += n1 + n2;
}
if (buf[0] == '\0') { // nothing left?
continue;
}
char *p_colon = strchr(buf, ':'); // : indicates a target-prerequisite line
char *p_equal = strchr(buf, '='); // = indicates a macro definition
// ---------------------------Recipes---------------------------------------------------------
if (buffer[0] == '\t') {
recipe_line_number++;
//printf(" >>> recipe line %d\n", recipe_line_number);
// the target that is before the recipe
struct target *myTarget = tg_list.head;
if ( myTarget != NULL) {
myTarget->rp_list.head = NULL;
myTarget->rp_list.tail = NULL;
// (save this for a later project)
char *recipe = Malloc(128*sizeof(char *));
int i = 1;
for(; buffer[i] != '\0'; i++) {
recipe[i-1] = buffer[i];
}
recipe[i] = '\0';
list_recipes_append(&(myTarget->rp_list), recipe);
}
}
// --------------------------------Targets--------------------------------------------------------
else if (p_colon != NULL) {
recipe_line_number = 0;
// printf(" >>> target-prerequisite\n");
// (save this for a later project)
char *target = Malloc(128 * sizeof(char *));
int i = 0;
//printf("%s\n",buffer);
// store target to the list
while(buffer[i] != ':' && buffer[i] != ' ') {
target[i] = buffer[i];
i++;
}
target[i] = '\0';
list_targets_append(&tg_list, target);
struct target *myTarget = target_lookup(tg_list, target);
// --------------------------------Sources------------------------------------------------------
//struct list_sources sc_list = *(myTarget->sc_list);
myTarget->sc_list.head = NULL;
myTarget->sc_list.tail = NULL;
// store source to the list
// skip all the spaces and ':', and go to the first source
while(buffer[i] == ' ' || buffer[i] == ':' ) {
i++;
}
// store sources to the list
while(buffer[i] != '\0') { // not terminate until the end of line
if( isalpha(buffer[i]) ) {
char* source = Malloc(128*sizeof(char));
assert(source != NULL);
int j=0;
while( isalpha(buffer[i]) ) {
source[j] = buffer[i];
// printf("source: %s\n", source);
j++;
i++;
}
list_sources_append(&(myTarget->sc_list), source);
}
else { // skip one whitespace
i++;
}
}
}
// --------------------------------Macros-----------------------------------------------------
else if (p_equal != NULL){
// printf(" >>> macro definition\n");
// name = body
// *p_equal is '='
char *name_start = buf;
while (*name_start == ' ' || *name_start == '\t') // skip past spaces and tabs
{ name_start++; }
char *name_end = p_equal-1;
while (*name_end == ' ' || *name_end == '\t')
{ name_end--; }
name_end++;
*name_end = '\0';
char *body_start = p_equal+1;
while (*body_start == ' ' || *body_start == '\t')
{ body_start++; }
char *body_end = body_start;
while (*body_end != '\0') // end of string
{ body_end++; }
while (*body_end == ' ' || *body_end == '\t')
{ body_end--; }
body_end++;
*body_end = '\0';
macro_list_print();
macro_set(name_start, body_start);
macro_list_print();
}
else if (strncmp("include", buf, 7) == 0) {
// printf(" >>> include\n");
char *name_start = buf + 7; // skip past "include"
while (*name_start == ' ' || *name_start == '\t') { // skip past spaces and tabs
name_start++;
}
if (*name_start == '\0') {
// following GNU Make, this is not an error
// fprintf(stderr, "%s: %s: line %d: include but no filename\n", prog, filename, line_number);
continue;
}
else if (*name_start == '\'' || *name_start == '"'){ // quoted filename
// find matching quote, remove it
char *q = name_start + 1; // skip past ' or "
while (*q != *name_start && *q != '\0') {
q++; // find end of string or line
}
if (*q == '\0') {
fprintf(stderr, "%s: %s: line %d: file name error: >>>%s<<<\n",
prog, filename, line_number, name_start);
continue;
}
name_start++; // skip past opening quote
*q = '\0'; // remove closing quote
}
read_file(name_start, 0);
}
else {
printf(" >>> something else\n");
fprintf(stderr, "%s: %s: line %d: not recognized: %s", prog, filename, line_number, original);
}
}
if (ferror(fp)) { // error when reading the file
fprintf(stderr, "%s: %s: read error: %s\n", prog, filename, strerror(errno));
}
return;
}
static void read_lines(char *filename, FILE *fp)
{
// if (verbose > 0)
// { fprintf(stderr, "%s: read_lines(%s)\n", prog, filename); }
char original[MAXLINE+2]; // from fgets()
char expanded[MAXLINE+2]; // after macro expansion
char buffer[MAXLINE+2]; // working copy, safe to modify
char whsp[] = " \t\n\v\f\r"; // whitespace characters
int line_number = 0;
int recipe_line_number = 0;
bool have_target = false; // recipes must follow targets
while (fgets(original, MAXLINE, fp) != NULL) {
// it is possible that the input line was too long, so terminate the string cleanly
original[MAXLINE] = '\n';
original[MAXLINE+1] = '\0';
line_number++;
if (verbose > 0) printf("%s: %s: line %d: %s\n", "prog", filename, line_number, original);
// assume original[] is constructed properly
// assume expanded[] is large enough
macro_expand(original, expanded);
if (verbose > 0) printf("%s: %s: line %d: %s\n", "prog", filename, line_number, expanded);
strcpy(buffer, expanded); // copy, safe to modify
char *buf = buffer;
while (*buf == ' ') buf++; // skip past leading spaces (not tabs!)
char *p_hash = strchr(buf, '#'); // a comment starts with #
if (p_hash != NULL)
{ *p_hash = '\0'; } // remove the comment
int n = 0; // remove trailing whitespace
while (buf[n] != '\0')
{
int n1 = strspn(&buf[n], whsp); // buf[n .. n+n1-1] is whitespace
int n2 = strcspn(&buf[n + n1], whsp); // buf[n+n1 .. n+n1+n2-1] is not
if (n2 == 0) { buf[n] = '\0'; break; } // remove trailing whitespace
n += n1 + n2;
}
if (buf[0] == '\0') // nothing left?
{ continue; }
char *p_colon = strchr(buf, ':'); // : indicates a target-prerequisite line
char *p_equal = strchr(buf, '='); // = indicates a macro definition
if (buffer[0] == '\t')
{
recipe_line_number++;
if (verbose > 0) printf(" diagnosis: recipe line %d\n", recipe_line_number);
if (have_target == false)
{
fprintf(stderr, "%s: %s: line %d: recipe but no target\n", prog, filename, line_number);
continue;
}
int count = 0;
while(*(buffer+1+count) != '\0')
{
count++;
}
char *recipe_temp = malloc((count+1)*sizeof(char));
set_chars(recipe_temp, buffer+1);
struct target* temp_update_target = find_target(first_related_target);
for(int i = 0; i < target_length; i++)
{
temp_update_target->target_recipes = add_recipe(temp_update_target->target_recipes, recipe_temp);
if(target_length > 1)
temp_update_target = temp_update_target->next;
}
}
else if (p_colon != NULL)
{
first_related_target = NULL;
target_length = 0;
recipe_line_number = 0;
if (verbose > 0) printf(" diagnosis: target-prerequisite\n");
have_target = true;
char *source_start = p_colon+1;
while(*source_start == ' ')
{
source_start++;
}
char *source_end = source_start;
struct source *source_head = malloc(sizeof(struct source));
if(source_head == NULL)
{
printf("Malloc failed to allocate space for a source_head in the main program\n");
return;
}
if(*source_end == '\n' || *source_end == '\0' || *source_end == '\r')
{
source_head = add_source(source_head, "");
}
while(*source_end != '\n' && *source_end != '\0' && *source_end != '\r')
{
if(*source_end == ' ' || *source_end == '\0')
{
*source_end = '\0';
int count = 0;
while(*(source_start+count) != '\0')
{
count++;
}
char *source_temp = malloc((count+1)*sizeof(char));
set_chars(source_temp, source_start);
source_head = add_source(source_head, source_temp);
source_start = source_end+1;
}
if(*(source_end+1) == '\0')
{
int count = 0;
while(*(source_start+count) != '\0')
{
count++;
}
char *source_temp = malloc((count+1)*sizeof(char));
set_chars(source_temp, source_start);
source_head = add_source(source_head, source_temp);
}
source_end++;
}
char *tar_start = buf;
while(*tar_start == ' ')
{
tar_start++;
}
char *tar_end = tar_start;
while(*tar_end != ':' && *tar_end != '\0')
{
if(*tar_end == ' ' || *tar_end == '\t')
{
*tar_end = '\0';
if(default_goal == NULL)
{
int count = 0;
while(*(tar_start+count) != '\0')
{
count++;
}
default_goal = malloc((count+1)*sizeof(char));
set_chars(default_goal, tar_start);
}
struct recipe* super_temp = malloc(sizeof(struct recipe));
super_temp->line = "replaceme";
char* temp = malloc(30 * sizeof(char));
set_chars(temp, tar_start);
add_target(temp, source_head, super_temp);
if(first_related_target == NULL)
{
int count = 0;
while(*(tar_start+count) != '\0')
{
count++;
}
first_related_target = malloc((count+1)*sizeof(char));
if (first_related_target == NULL)
{
printf("malloc failed\n");
}
for(int i = 0; i < count+2; i++)
{
*(first_related_target+i) = *(tar_start+i);
}
}
target_length++;
tar_start = (tar_end+1);
}
if(*(tar_end+1) == ':' )
{
if(*(tar_end) != ' ')
{
int count = 0;
while(*(tar_start+count) != ':')
{
count++;
}
*(tar_end+1) = '\0';
char *tar_temp = malloc((count+1)*sizeof(char));
set_chars(tar_temp, tar_start);
struct recipe* super_temp = malloc(sizeof(struct recipe));
super_temp->line = "replaceme";
add_target(tar_temp, source_head, super_temp);
if(first_related_target == NULL)
{
int count = 0;
while(*(tar_start+count) != '\0')
{
count++;
}
first_related_target = malloc((count+1)*sizeof(char));
if (first_related_target == NULL)
{
printf("malloc failed\n");
}
set_chars(first_related_target, tar_start);
}
}
}
tar_end++;
}
}
else if (p_equal != NULL)
{
first_related_target = NULL;
target_length = 0;
if (verbose > 0) printf(" diagnosis: macro definition\n");
have_target = false;
// name = body
// *p_equal is '='
char *name_start = buf;
while (*name_start == ' ' || *name_start == '\t') // skip past spaces and tabs
{ name_start++; }
char *name_end = p_equal-1;
while (*name_end == ' ' || *name_end == '\t')
{ name_end--; }
name_end++;
*name_end = '\0';
char *body_start = p_equal+1;
while (*body_start == ' ' || *body_start == '\t')
{ body_start++; }
char *body_end = body_start;
while (*body_end != '\0') // end of string
{ body_end++; }
while (*body_end == ' ' || *body_end == '\t')
{ body_end--; }
body_end++;
*body_end = '\0';
if (verbose > 1) macro_list_print();
macro_set(name_start, body_start);
if (verbose > 1) macro_list_print();
}
else if (strncmp("include", buf, 7) == 0)
{
first_related_target = NULL;
target_length = 0;
if (verbose > 0) printf(" diagnosis: include\n");
have_target = false;
char *name_start = buf + 7; // skip past "include"
while (*name_start == ' ' || *name_start == '\t') // skip past spaces and tabs
{ name_start++; }
if (*name_start == '\0')
{
// following GNU Make, this is not an error
if (verbose > 0) fprintf(stderr, "%s: %s: line %d: include but no filename\n", prog, filename, line_number);
continue;
}
else if (*name_start == '\'' || *name_start == '"') // quoted filename
{
// find matching quote, remove it
char *q = name_start + 1; // skip past ' or "
while (*q != *name_start && *q != '\0') q++; // find end of string or line
if (*q == '\0')
{
fprintf(stderr, "%s: %s: line %d: file name error [%s]\n", prog, filename, line_number, name_start);
continue;
}
name_start++; // skip past opening quote
*q = '\0'; // remove closing quote
}
pr8_read(name_start);
}
else
{
if (verbose > 0) printf(" diagnosis: something else\n");
have_target = false;
// fprintf(stderr, "%s: %s: line %d: not recognized: %s", prog, filename, line_number, original);
}
}
// if (ferror(fp)) // error when reading the file
// { fprintf(stderr, "%s: %s: read error: %s\n", prog, filename, strerror(errno)); }
return;
}
