|
| 1 | +from fortls.regex_patterns import ( |
| 2 | + DQ_STRING_REGEX, |
| 3 | + FIXED_COMMENT_LINE_MATCH, |
| 4 | + FREE_FORMAT_TEST, |
| 5 | + LINE_LABEL_REGEX, |
| 6 | + LOGICAL_REGEX, |
| 7 | + NAT_VAR_REGEX, |
| 8 | + NUMBER_REGEX, |
| 9 | + SQ_STRING_REGEX, |
| 10 | + WORD_REGEX, |
| 11 | +) |
| 12 | + |
| 13 | + |
| 14 | +def expand_name(line, char_poss): |
| 15 | + """Get full word containing given cursor position""" |
| 16 | + # The order here is important. |
| 17 | + # WORD will capture substrings in logical and strings |
| 18 | + regexs = [LOGICAL_REGEX, SQ_STRING_REGEX, DQ_STRING_REGEX, WORD_REGEX, NUMBER_REGEX] |
| 19 | + for r in regexs: |
| 20 | + for num_match in r.finditer(line): |
| 21 | + if num_match.start(0) <= char_poss and num_match.end(0) >= char_poss: |
| 22 | + return num_match.group(0) |
| 23 | + return "" |
| 24 | + |
| 25 | + |
| 26 | +def detect_fixed_format(file_lines): |
| 27 | + """Detect fixed/free format by looking for characters in label columns |
| 28 | + and variable declarations before column 6. Treat intersection format |
| 29 | + files as free format.""" |
| 30 | + for line in file_lines: |
| 31 | + if FREE_FORMAT_TEST.match(line): |
| 32 | + return False |
| 33 | + tmp_match = NAT_VAR_REGEX.match(line) |
| 34 | + if tmp_match and tmp_match.start(1) < 6: |
| 35 | + return False |
| 36 | + # Trailing ampersand indicates free or intersection format |
| 37 | + if not FIXED_COMMENT_LINE_MATCH.match(line): |
| 38 | + line_end = line.split("!")[0].strip() |
| 39 | + if len(line_end) > 0 and line_end[-1] == "&": |
| 40 | + return False |
| 41 | + return True |
| 42 | + |
| 43 | + |
| 44 | +def strip_line_label(line): |
| 45 | + """Strip leading numeric line label""" |
| 46 | + match = LINE_LABEL_REGEX.match(line) |
| 47 | + if match is None: |
| 48 | + return line, None |
| 49 | + else: |
| 50 | + line_label = match.group(1) |
| 51 | + out_str = line[: match.start(1)] + " " * len(line_label) + line[match.end(1) :] |
| 52 | + return out_str, line_label |
| 53 | + |
| 54 | + |
| 55 | +def strip_strings(in_line, maintain_len=False): |
| 56 | + """String string literals from code line""" |
| 57 | + |
| 58 | + def repl_sq(m): |
| 59 | + return "'{0}'".format(" " * (len(m.group()) - 2)) |
| 60 | + |
| 61 | + def repl_dq(m): |
| 62 | + return '"{0}"'.format(" " * (len(m.group()) - 2)) |
| 63 | + |
| 64 | + if maintain_len: |
| 65 | + out_line = SQ_STRING_REGEX.sub(repl_sq, in_line) |
| 66 | + out_line = DQ_STRING_REGEX.sub(repl_dq, out_line) |
| 67 | + else: |
| 68 | + out_line = SQ_STRING_REGEX.sub("", in_line) |
| 69 | + out_line = DQ_STRING_REGEX.sub("", out_line) |
| 70 | + return out_line |
| 71 | + |
| 72 | + |
| 73 | +def separate_def_list(test_str): |
| 74 | + """Separate definition lists, skipping parenthesis and bracket groups |
| 75 | +
|
| 76 | + Examples: |
| 77 | + "var1, var2, var3" -> ["var1", "var2", "var3"] |
| 78 | + "var, init_var(3) = [1,2,3], array(3,3)" -> ["var", "init_var", "array"] |
| 79 | + """ |
| 80 | + stripped_str = strip_strings(test_str) |
| 81 | + paren_count = 0 |
| 82 | + def_list = [] |
| 83 | + curr_str = "" |
| 84 | + for char in stripped_str: |
| 85 | + if (char == "(") or (char == "["): |
| 86 | + paren_count += 1 |
| 87 | + elif (char == ")") or (char == "]"): |
| 88 | + paren_count -= 1 |
| 89 | + elif (char == ",") and (paren_count == 0): |
| 90 | + curr_str = curr_str.strip() |
| 91 | + if curr_str != "": |
| 92 | + def_list.append(curr_str) |
| 93 | + curr_str = "" |
| 94 | + elif (curr_str == "") and (len(def_list) == 0): |
| 95 | + return None |
| 96 | + continue |
| 97 | + curr_str += char |
| 98 | + curr_str = curr_str.strip() |
| 99 | + if curr_str != "": |
| 100 | + def_list.append(curr_str) |
| 101 | + return def_list |
| 102 | + |
| 103 | + |
| 104 | +def find_word_in_line(line, word): |
| 105 | + """Find Fortran word in line""" |
| 106 | + i0 = -1 |
| 107 | + for poss_name in WORD_REGEX.finditer(line): |
| 108 | + if poss_name.group() == word: |
| 109 | + i0 = poss_name.start() |
| 110 | + break |
| 111 | + return i0, i0 + len(word) |
| 112 | + |
| 113 | + |
| 114 | +def find_paren_match(test_str): |
| 115 | + """Find matching closing parenthesis by searching forward, |
| 116 | + returns -1 if no match is found""" |
| 117 | + paren_count = 1 |
| 118 | + ind = -1 |
| 119 | + for (i, char) in enumerate(test_str): |
| 120 | + if char == "(": |
| 121 | + paren_count += 1 |
| 122 | + elif char == ")": |
| 123 | + paren_count -= 1 |
| 124 | + if paren_count == 0: |
| 125 | + return i |
| 126 | + return ind |
0 commit comments