here u go

diff-rcm.dSYM/Contents/Info.plist

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+	<dict>
+		<key>CFBundleDevelopmentRegion</key>
+		<string>English</string>
+		<key>CFBundleIdentifier</key>
+		<string>com.apple.xcode.dsym.diff-rcm</string>
+		<key>CFBundleInfoDictionaryVersion</key>
+		<string>6.0</string>
+		<key>CFBundlePackageType</key>
+		<string>dSYM</string>
+		<key>CFBundleSignature</key>
+		<string>????</string>
+		<key>CFBundleShortVersionString</key>
+		<string>1.0</string>
+		<key>CFBundleVersion</key>
+		<string>1</string>
+	</dict>
+</plist>

diff.c

@@ -12,7 +12,7 @@ int main(int argc, const char* argv[]) {
   init(--argc, ++argv);
   loadfiles(files[0], files[1]);
 
-  if (**argv != '-')      { normal(files[0], files[1]); }
+  if (**argv != '-' || diffnormal == 1)      { standard(files[0], files[1]); }
 
   if (showsidebyside)     { sideside(files[0], files[1]); }
   if (showbrief)          { quiet(files[0], files[1]); }
@@ -39,7 +39,7 @@ void init(int argc, const char* argv[]) {
     setoption(arg, "--suppress-common-lines",   NULL,                         &suppresscommon);
     setoption(arg, "-c",                        "--context",                  &showcontext);
     setoption(arg, "-u",                        "showunified",                &showunified);
-    setoption(arg, "-h",                        "--help",                     &showhelp);
+    setoption(arg, "--help",                    NULL,                         &showhelp);
 
     if (arg[0] != '-') {
       if (cnt == 2) {
@@ -70,8 +70,8 @@ void setoption(const char* arg, const char* s, const char* t, int* value) {
 }
 void diff_output_conflict_error(void) {
 
-  fprintf(stderr, "diff: conflicting output style options\n");
+  fprintf(stderr, "diff-rcm: Conflicting output style options.\n");
-  fprintf(stderr, "diff: Try `diff --help' for more information.)\n");
+  fprintf(stderr, "diff-rcm: Try `diff --help' for more information.)\n");
   exit(CONFLICTING_OUTPUT_OPTIONS);
 
 }
@@ -114,7 +114,7 @@ void help() {
   printf("\nUsage: diff-rcm [OPTION]... FILES\n");
   printf("Compare FILES line by line.\n\n");
   printf("Mandatory arguments to long options are mandatory for short options too.\n\n");
-  printf("\t    --normal\t\t        output a normal diff (the default)\n");
+  printf("\t    --standard\t\t        output a standard diff (the default)\n");
   printf("\t-q, --brief\t\t        report only when files differ\n");
   printf("\t-s, --report-identical-files    report when two files are the same\n");
   printf("\t-c, -C NUM, --context[=NUM]     output NUM (default 3) lines of copied context\n");
@@ -132,54 +132,61 @@ void help() {
   printf("diff-rcm homepage: <https://www.github.com/cdnutter/diff/>\n\n");
 }
 
-int normal(const char* filename1, const char* filename2) {
+int standard(const char* filename1, const char* filename2) {
 
   identical(filename1, filename2);
 
-  printf("\nTHIS IS NOT NORMAL FOR NOW. THIS IS PLACEHOLDER. MMKAY.\n");
+  printf("\nTHIS IS NOT standard FOR NOW. THIS IS PLACEHOLDER. MMKAY.\n");
-  printf("THIS IS NOT NORMAL FOR NOW. THIS IS PLACEHOLDER. MMKAY.\n");
+  printf("THIS IS NOT standard FOR NOW. THIS IS PLACEHOLDER. MMKAY.\n");
-  printf("THIS IS NOT NORMAL FOR NOW. THIS IS PLACEHOLDER. MMKAY.\n");
+  printf("THIS IS NOT standard FOR NOW. THIS IS PLACEHOLDER. MMKAY.\n");
-  printf("THIS IS NOT NORMAL FOR NOW. THIS IS PLACEHOLDER. MMKAY.\n\n");
+  printf("THIS IS NOT standard FOR NOW. THIS IS PLACEHOLDER. MMKAY.\n\n");
 
-  //pa_print(p, printnormal);
+    //pa* qlast = q;
 
   return 0;
 }
+
 int sideside(const char* filename1, const char* filename2) {
     
     pa* qlast = q;
-  while (p != NULL) {
+    
+    while(p != NULL) {
+        
         qlast = q;
         foundmatch = 0;
+        
         while (q != NULL && (foundmatch = pa_equal(p, q)) == 0) { q = pa_next(q); }
         q = qlast;
         
         if (foundmatch) {
             while ((foundmatch = pa_equal(p, q)) == 0) {
-        pa_print(q, printright);
+                pa_print(q, NULL, printright);
                 q = pa_next(q);
                 qlast = q;
             }
-      pa_print(q, printboth);
+            
+            if      (showleftcolumn) { pa_print(p, q, printnocommon); }
+            else if (suppresscommon) { pa_print(p, q, printleftparen); }
+            else                     { pa_print(p, q, printboth); }
+            
             p = pa_next(p);
             q = pa_next(q);
-    } else {
-      pa_print(p, printleft);
-      p = pa_next(p);
-    }
-  }
-  while (q != NULL) {
-    pa_print(q, printright);
-    q = pa_next(q);
         }
         
+        else { pa_print(p, NULL, printleft);  p = pa_next(p); }
+    }
+    
+    while(q != NULL) { pa_print(q, NULL, printright);  q = pa_next(q); }
+    
     return 0;
+    
 }
+
 void quiet(const char* filename1, const char* filename2) { if (pa_equal(p, q) == 0) { printf("The files are not the same.\n"); } else { return; } }
 void loud(const char* filename1, const char* filename2) {
 
   if (*filename1 == *filename2 || (pa_equal(p, q) != 0)) { printf("The files are identical.\n"); }
-  else { normal(files[0], files[1]); }
+  else { standard(files[0], files[1]); }
 
 }
 

diff.h

@@ -49,7 +49,7 @@ void loadfiles(const char* filename1, const char* filename2);
 void version();
 void help();
 
-int normal(const char* filename1, const char* filename2);
+int standard(const char* filename1, const char* filename2);
 int sideside(const char* filename1, const char* filename2);
 void quiet(const char* filename1, const char* filename2);
 void loud(const char* filename1, const char* filename2);

left.txt

@@ -1,25 +0,0 @@
-This part of the
-document has stayed the
-sme from version to
-version. It shouldn't
-be shown if it doesn't
-change. Otherwise, that
-would not be helping to
-compress the size of the
-changes.
-
-This paragraph contains
-text that is outdated.
-It will be deleted in the
-near future.
-
-It is important to spell
-check this dokument. On
-the other hand, a
-misspelled word isn't
-the end of the world.
-Nothing in the rest of
-this paragraph needs to
-be changed. Things can
-be added after it.
-

pa.c

@@ -7,7 +7,9 @@
 // ======================================================================= //
 
 pa* pa_make(char* base[], int filesize, int start, int stop) {
-  pa* p = (pa*) malloc(sizeof(pa));
+    
+    pa* p = (pa*)malloc(sizeof(pa));
+    
     p->base = base;
     p->filesize = filesize;
     p->start = start;
@@ -16,99 +18,141 @@ pa* pa_make(char* base[], int filesize, int start, int stop) {
     p->secondline = (p == NULL || start < 0 || filesize < 2) ? NULL : p->base[start + 1];
     
     return p;
+    
+}
+
+pa* pa_next(pa* p) {
+    
+    int i;
+    
+    if (p->stop == p->filesize) { return NULL; }
+    pa* pnew = pa_make(p->base, p->filesize, p->stop + 1, p->stop + 1);
+    
+    for (i = pnew->start; i < p->filesize && strcmp(p->base[i], "\n") != 0; ++i);
+    pnew->stop = i;
+    if (pnew->start >= p->filesize) { free(pnew); pnew = NULL; }
+    
+    return pnew;
+    
 }
 
 pa* pa_first(char* base[], int size) {
+    
     pa* p = pa_make(base, size, 0, -1);
     return pa_next(p);
+    
 }
 
 void pa_destroy(pa* p)    { free(p); }
 
-pa* pa_next(pa* p) {
-  if (p == NULL || p->stop == p->filesize) { return NULL; }
-
-  int i;
-  pa* pnew = pa_make(p->base, p->filesize, p->stop + 1, p->stop + 1);
-  for (i = pnew->start; i < p->filesize && strcmp(p->base[i], "\n") != 0; ++i) { }
-  pnew->stop = i;
-
-  if (pnew->start >= p->filesize) {
-    free(pnew);
-    pnew = NULL;
-  }
-  return pnew;
-}
 size_t pa_filesize(pa* p) { return p == NULL ? 0 : p->filesize; }
-
 size_t pa_size(pa* p)     { return p == NULL || p->stop < p->start ? 0 : p->stop - p->start + 1; }
-
 char** pa_base(pa* p)     { return p->base; }
 
 char* pa_info(pa* p) {
-  static char buf[BUFLEN];   // static for a reason
+    
-  snprintf(buf, sizeof(buf), "base: %p, filesize: %d, start: %d, stop: %d\n",
+    static char buf[BUFLEN];
-           p->base, p->filesize, p->start, p->stop);
+    snprintf(buf, sizeof(buf), "base: %p, filesize: %d, start: %d, stop: %d\n", p->base, p->filesize, p->start, p->stop);
-  return buf;  // buf MUST be static
+    return buf;
+    
 }
 
 int pa_equal(pa* p, pa* q) {
+    
     if (p == NULL || q == NULL) { return 0; }
     if (pa_size(p) != pa_size(q)) { return 0; }
-  if (p->start >= p->filesize || q->start >= q->filesize) { return 0; }
+    if(p->start >= p->filesize || q->start >= q->filesize) { return 0; }
+    
     int i = p->start, j = q->start, equal = 0;
     while ((equal = strcmp(p->base[i], q->base[i])) == 0) { ++i; ++j; }
+    
     return 1;
+    
 }
 
-void pa_print(pa* p, void (*fp)(const char*)) {
+void sideside_type(const char* left, const char* right, int nocommon, int leftparen, char symbol) {
+    
+    char buf[BUFLEN];
+    
+    symbol = ((strcmp(left, right) == 0) ? symbol : '|');
+    size_t len = strlen(left);
+    
+    if(len > 0) { strncpy(buf, left, len); }
+    buf[len - 1] = '\0';
+    
+    if(symbol != '|' && nocommon == 1) { return; }
+    
+    printf("%-61s %c ", buf, symbol);
+    if (symbol == '|') { printf("%s", right); }
+    else { printf("%s", (leftparen ? "\n" : right)); }
+    
+}
+
+void print_first(pa* p, void (*fp)(const char*)) {
+    
     if (p == NULL) { return; }
     for (int i = p->start; i <= p->stop && i != p->filesize; ++i) { fp(p->base[i]); }
+    
 }
 
-void pa_printfile(char* base[], int count, void (*fp)(const char*)) {
+void print_second(pa* p, pa* q, void (*fp)(const char*, const char*)) {
-  pa* p = pa_first(base, count);
+    
-  while (p != NULL) {
+    if(p == NULL || q == NULL) { return; }
-    pa_print(p, fp);
+    for(int i = p->start, j = q->start;
-    p = pa_next(p);
+        i <= p->stop && i != p->filesize &&
+        j <= q->stop && j != q->filesize; ++i, ++j) {
+        fp(p->base[i], q->base[j]);
     }
-  printline();
+    
 }
 
-char* yesorno(int condition) { return condition == 0 ? "no" : "YES"; }
+void pa_print(pa* p, pa* q, void (*fp)(const char*, const char*)) {
+    
+    if(q == NULL) { print_first(p, (void (*)(const char*)) fp); }
+    else { print_second(p, q, fp); }
+    
+}
+
+void printleftparen(const char* left, const char* right) { sideside_type(left, right, 1, 0, ' '); }
+void printnocommon(const char* left, const char* right)  { sideside_type(left, right, 0, 1, '('); }
 
 FILE* openfile(const char* filename, const char* openflags) {
+    
     FILE* f;
     if ((f = fopen(filename, openflags)) == NULL) {  printf("can't open '%s'\n", filename);  exit(1); }
     return f;
+    
 }
 
-void printline(void) {
+void printleft(const char* left, const char* n) {
-  for (int i = 0; i < 10; ++i) { printf("=========="); }
-  printf("\n");
-}
     
-
-void printleft(const char* left) {
     char buf[BUFLEN];
-
     strcpy(buf, left);
+    
     int j = 0, len = (int)strlen(buf) - 1;
     for (j = 0; j <= 48 - len ; ++j) { buf[len + j] = ' '; }
+    
     buf[len + j++] = '<';
     buf[len + j++] = '\0';
     printf("%s\n", buf);
+    
 }
 
-void printright(const char* right) {
+void printright(const char* right, const char* n) {
+    
     if (right == NULL) { return; }
     printf("%50s %s", ">", right);
+    
 }
 
-void printboth(const char* left_right) {
+void printboth(const char* left_right, const char* n) {
+    
     char buf[BUFLEN];
     size_t len = strlen(left_right);
+    
     if (len > 0) { strncpy(buf, left_right, len); }
+    
     buf[len - 1] = '\0';
     printf("%-50s %s", buf, left_right);
+    
 }

pa.h

@@ -23,18 +23,24 @@ pa* q;
 pa* pa_make(char* base[], int size, int start, int stop);
 pa* pa_first(char* base[], int size);
 pa* pa_next(pa* p);
+void pa_destroy(pa* p);
 size_t pa_filesize(pa* p);
 size_t pa_size(pa* p);
 char** pa_base(pa* p);
 char* pa_info(pa* p);
 int pa_equal(pa* p, pa* q);
-void pa_print(pa* p, void (*fp)(const char*));
+void sideside_type(const char* left, const char* right, int nocommon, int leftparen, char symbol);
-void printboth(const char* left_right);
+void print_first(pa* p, void (*fp)(const char*));
-void printleft(const char* left);
+void print_second(pa* p, pa* q, void (*fp)(const char*, const char*));
-void printright(const char* right);
+void pa_print(pa* p, pa* q, void (*fp)(const char*, const char*));
-void pa_printfile(char* base[], int count, void (*fp)(const char*));
+void printleftparen(const char* left, const char* right);
-FILE* openfile(const char* filename, const char* openflags);
+void printnocommon(const char* left, const char* right);
+void pa_printfile(char* base[], int count, void(*fp)(const char*, const char*));
 char* yesorno(int condition);
-void printline(void);
+FILE* openfile(const char* filename, const char* openflags);
+void pa_printline(void);
+void printleft(const char* left, const char*);
+void printright(const char* right, const char*);
+void printboth(const char* left_right, const char* n);
 
 #endif

right.txt

@@ -1,31 +0,0 @@
-This is an important
-notice! It should
-therefore be located at
-the beginning of this
-document!
-
-This part of the
-document has stayed the
-sme from version to
-version. It shouldn't
-be shown if it doesn't
-change. Otherwise, that
-would not be helping to
-compress the size of the
-changes.
-
-It is important to spell
-check this document. On
-the other hand, a
-misspelled word isn't
-the end of the world.
-Nothing in the rest of
-this paragraph needs to
-be changed. Things can
-be added after it.
-
-This pragraph contains
-important new additions
-to this document.
-
-