add on the fly macros

pymacro/macros

@@ -2,7 +2,7 @@
 .hy	hydrogen
 .ca	carbon
 .ox	oxygen
-:wink:	😉
+.wink	😉
 source	tests/test_macros_biology
 source	tests/test_macros_custom_plurals
 source	tests/test_macros_plural

pymacro/pymacro

@@ -4,6 +4,16 @@ import sys
 import re
 
 
+class MultipleTokens():
+    """
+    Used by process() to tell detokenize() that a macro adds extra tokens without modifying
+    without changing the indexes of other tokens
+    """
+
+    def __init__(self, words):
+        self.words  = words
+
+
 def get_args():
     """ Get command line arguments """
 
@@ -11,10 +21,8 @@ def get_args():
     parser = argparse.ArgumentParser()
     parser.add_argument("-m", "--macros", default=["macros"], action="append",
                         help="Extra files where macros are stored")
-    parser.add_argument("-q", "--quiet", default=False, action="store_true",
-                        help="Don't output to stdout")
-    parser.add_argument("input", help="The file to be processed")
-    parser.add_argument("output", help="The location of the output")
+    parser.add_argument("-i", "--input", help="The file to be processed", default="-")
+    parser.add_argument("-o", "--output", help="The location of the output", default="-")
     return parser.parse_args()
 
 
@@ -75,16 +83,19 @@ def upper_check(token, word):
     return word
 
 
-def process(tokens, macros):
+def process(input, macros):
+    tokens, otf_macros = tokenize(input)
     output = tokens
+    macros = otf_macros + macros
 
     for line_number, line in enumerate(tokens):
         for token_number, token in enumerate(line):
             if len(token) == 0:
                 continue
 
-            
-            # cutting of the end and then adding it back once expanded
+            # cutting off the end and then adding it back once expanded
+            # e.g. punctuation: from the token "hello...", end would be equal to "..."
+            #      and token would be equal to "hello"
             end = []
             token = list(token)
             for index, char in reversed(list(enumerate(token))):
@@ -108,29 +119,79 @@ def process(tokens, macros):
                     break
 
             output[line_number][token_number] = upper_check(token, value)
-
-            # re adding what was trimmed off
             output[line_number][token_number] += end
 
+    return detokenize(output)
+
+def tokenize(input):
+    """
+    Returns a 2D list of tokens and a list of otf_macros.
+    otf macro definitions are removed and just the keyword definition is kept as well as any
+    punctuation on the final word.
+    """
+    tokens =  [x.split(' ') for x in input.split('\n')]
+
+    otf_macros = []
+    in_otf_macro = False
+    tmp_macro_keyword = None
+    tmp_macro_definition = []
+
+    # find and extract on the fly macros
+    for line_index, line in enumerate(tokens):
+        for token_index, token in enumerate(line):
+            token_is_otf_macro_start = is_otf_macro_start(token, line)
+            in_otf_macro = token_is_otf_macro_start or in_otf_macro
+
+            if token_is_otf_macro_start:
+                tmp_macro_keyword = token
+                tmp_macro_definition = []
+                tokens[line_index][token_index] = None
+                continue
+            elif in_otf_macro and is_otf_macro_end(token):
+                split_token = re.split(r',.|.,', token)
+                tmp_macro_definition.append(split_token[0])
+                tokens[line_index][token_index] = tmp_macro_keyword + split_token[1]
+                otf_macros.append((tmp_macro_keyword, ' '.join(tmp_macro_definition)))
+                in_otf_macro = False
+                continue
+            elif in_otf_macro:
+                tmp_macro_definition.append(token)
+                tokens[line_index][token_index] = None
+                continue
+
+        # filter out None tokens
+        tokens[line_index] = [token for token in tokens[line_index] if token is not None]
+
+    return tokens, otf_macros
+
+
+
+
+def detokenize(tokens):
+    """Turn a list of tokens into plaintext. """
+
+    output = []
+
+    for index, line in enumerate(tokens):
+        output.append([])
+        for token in line:
+            if isinstance(token, MultipleTokens):
+                for word in token.words:
+                    output[index].append(word)
+            elif isinstance(token, str):
+                output[index].append(token)
+            else:
+                raise ValueError(f"Unknown token type: {type(token)}")
+
     for line_number, line in enumerate(output):
         output[line_number] = ' '.join(line)
 
-    output = '\n'.join(output)
-
-    return output
-
-
-def tokenize(input):
-    """
-    Return of list of tokens from string (convert file contents to format to be
-    processed by `process`
-    """
-    return [x.split(' ') for x in input.split('\n')]
+    return  '\n'.join(output)
 
 
 def get_macros(input):
     """
-    Turn a string into a list of tuples of macros
+    Turn a macros string into a list of tuples of macros
     """
     response = []
 
@@ -142,11 +203,34 @@ def get_macros(input):
         if macro[0] == "source":
             with open(macro[1]) as file:
                 response += get_macros(file.read())
-        if len(macro) == 2 or len(macro) == 3:
+        if len(macro) >= 2:
             response.append(tuple(macros[index]))
 
     return response
 
+def is_otf_macro_start(token, line):
+    """
+    Returns true if token is the start of an on the fly macro
+    """
+    match = re.search(r'^\.[A-Za-z0-9]+$', token)
+    if match is None:
+        return False
+
+    # don't return true you can't find an end token in the line
+    for line_token in line:
+        if is_otf_macro_end(line_token):
+            return match is not None
+    
+    return False
+
+
+def is_otf_macro_end(token):
+    """
+    Returns true if token is the end of an on the fly macro
+    """
+    match = re.search(r'(\.,|,\.)', token)
+    return match is not None
+
 
 def main(args):
     """ Entry point for script """
@@ -159,17 +243,13 @@ def main(args):
             macros += get_macros(file.read())
 
     # get tokens (file contents)
+    if args.input == "-":
+        input = sys.stdin.read()
+    else:
         with open(args.input) as file:
-        tokens = tokenize(file.read())
+            input = file.read()
 
-    # get output
-    output = process(tokens, macros)
-
-    # show and save output
-    with open(args.output, 'w+') as file:
-        file.write(output)
-
-    return 0
+    return print(process(input, macros))
 
 
 if __name__ == '__main__':

pymacro/test.sh

@@ -1,3 +1,3 @@
 #/usr/bin/env sh
-./pymacro -q tests/test_input tests/test_actual_output
+cat tests/test_input | ./pymacro > tests/test_actual_output
 git diff tests/test_actual_output tests/test_expected_output

pymacro/tests/test_input

@@ -10,3 +10,7 @@
 1 .he 2 .hes
 1 .le 2 .les
 1 .ma 2 .mas
+
+This is a test of .otfm on the fly macro.,s!
+
+If this sentence makes sense, then the test of .otfms worked!

syntax.md

@@ -30,6 +30,31 @@ This sources macros from its parent and grandparent directories.
 This may be useful if you have several related topics in separate folders,
 but only some of the macros are shared and some are not.
 
+### on the fly definitions
+
+You can also define macros in the middle of a sentence without having to switch to the macros file.
+The last word of multi-word macros must end with `.,`  or `,.` and end on the same line.
+
+```
+# .Hc hydrocarbon
+In or
+In organic chemistry, a .hc is an .oc organic compound., consisting entirely of
+hydrogen and carbon. .Hcs are examples of group 14 hydrides.
+
+
+.Ocs are compounds which contain .c .h bonds.
+```
+
+The output would be the following:
+
+```markdown
+# Hydrocarbon
+In organic chemistry, a hydrocarbon is an organic compound consisting entirely
+of hydrogen and carbon. Hydrocarbons are examples of group 14 hydrides.
+
+Organic compounds are compounds which contain carbon hydrogen bonds.
+```
+
 ## plurals
 
 Say you only have the following macro definitions: