Class: Livetext::UserAPI

Inherits:
Object show all
Includes:
Standard
Defined in:
lib/livetext/userapi.rb

Overview

Encapsulate the UserAPI as a class

Constant Summary collapse

KBD = 
File.new("/dev/tty", "r")
TTY = 
File.new("/dev/tty", "w")
DotSpace =

Livetext::Sigil + Livetext::Space

". "

Constants included from Standard

Standard::SimpleFormats

Constants included from Helpers

Helpers::Comment, Helpers::DollarDot, Helpers::DotCmd, Helpers::ESCAPING, Helpers::Sigil, Helpers::Space

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Standard

#backtrace, #banner, #bits, #br, #cinclude, #cleanup, #comment, #copy, #dlist, #dot_def, #dot_include, #errout, #func, #h1, #h2, #h3, #h4, #h5, #h6, #heading, #heredoc, #heredoc!, #image, #import, #inherit, #link, #list, #list!, #mixin, #mono, #newpage, #nopara, #nopass, #para, #quit, #r, #raw, #reflection, #say, #seek, #set, #shell, #shell!, #table, #ttyout, #variables, #variables!, #xtable

Methods included from Helpers

#check_disallowed, #check_file_exists, #escape_html, #find_file, #friendly_error, #get_name_data, #grab_file, #graceful_error, #handle_dollar_dot, #handle_dotcmd, #handle_scomment, #invoke_dotcmd, #onoff, #process_file, #process_line, #read_variables, rx, #search_upward, #set_variables, #setfile, #setfile!, #showme

Constructor Details

#initialize(live) ⇒ UserAPI 



17
18
19
20
21
22
 
# File 'lib/livetext/userapi.rb', line 17

def initialize(live)
  @live = live
  @vars = live.vars
  @html = HTML.new(self)
  @expander = Livetext::Expansion.new(live)
end

Instance Attribute Details

#args ⇒ Object

Returns the value of attribute args.



15
16
17
 
# File 'lib/livetext/userapi.rb', line 15

def args
  @args
end

#data ⇒ Object

Returns the value of attribute data.



15
16
17
 
# File 'lib/livetext/userapi.rb', line 15

def data
  @data
end

Instance Method Details

#api ⇒ Object 



24
25
26
 
# File 'lib/livetext/userapi.rb', line 24

def api
  @live.api
end

#body(raw = false) ⇒ Object 



129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
 
# File 'lib/livetext/userapi.rb', line 129

def body(raw=false)
  lines = []
  end_found = false
  loop do
    @line = @live.nextline
    break if @line.nil?
    @line.chomp!
    break if end?(@line)
    next if comment?(@line)
    @line = format(@line) unless raw
    lines << @line
  end
  raise "Expected .end, found end of file" unless end?(@line)  # use custom exception
  optional_blank_line   # FIXME Delete this??
  return lines unless block_given?
  lines.each {|line| yield line }   # FIXME what about $. ?
end

#body_text(raw = false) ⇒ Object 



147
148
149
 
# File 'lib/livetext/userapi.rb', line 147

def body_text(raw=false)
  raw_body.join("\n")
end

#check_existence(file, msg) ⇒ Object 



71
72
73
 
# File 'lib/livetext/userapi.rb', line 71

def check_existence(file, msg)
  STDERR.puts msg unless File.exist?(file)
end

#comment?(str) ⇒ Boolean 



101
102
103
 
# File 'lib/livetext/userapi.rb', line 101

def comment?(str)
  str.index(DotSpace) == 0
end

#debug(*args) ⇒ Object 



215
216
217
 
# File 'lib/livetext/userapi.rb', line 215

def debug(*args)
  TTY.puts *args if @live.debug
end

#debug=(val) ⇒ Object 



211
212
213
 
# File 'lib/livetext/userapi.rb', line 211

def debug=(val)
  @live.debug = val
end

#dot ⇒ Object 



40
41
42
 
# File 'lib/livetext/userapi.rb', line 40

def dot
  @live
end

#dump(file = nil) ⇒ Object

not a dot command!



28
29
30
31
32
33
34
 
# File 'lib/livetext/userapi.rb', line 28

def dump(file = nil)   # not a dot command!
  file ||= ::STDOUT
  # TTY.puts "--- Writing body (#{@live.body.size} bytes)"
  file.puts @live.body
rescue => err
  TTY.puts "#dump had an error: #{err.inspect}"
end

#end?(str) ⇒ Boolean 



110
111
112
113
 
# File 'lib/livetext/userapi.rb', line 110

def end?(str)
  return true if str == ".end" || str =~ / *\$\.end/
  return false
end

#err(*args) ⇒ Object 



197
198
199
 
# File 'lib/livetext/userapi.rb', line 197

def err(*args)
  STDERR.puts *args
end

#expand_functions(str) ⇒ Object 



55
56
57
 
# File 'lib/livetext/userapi.rb', line 55

def expand_functions(str)
  @expander.expand_functions(str)
end

#expand_variables(str) ⇒ Object 



51
52
53
 
# File 'lib/livetext/userapi.rb', line 51

def expand_variables(str)
  @expander.expand_variables(str)
end

#format(line) ⇒ Object 



163
164
165
166
 
# File 'lib/livetext/userapi.rb', line 163

def format(line)
  line2 = @expander.format(line)
  line2
end

#handle_escapes(str, set) ⇒ Object 



155
156
157
158
159
160
161
 
# File 'lib/livetext/userapi.rb', line 155

def handle_escapes(str, set)
  str = str.dup
  set.each_char do |ch|
    str.gsub!("\\#{ch}", ch)
  end
  str
end

#html ⇒ Object 



36
37
38
 
# File 'lib/livetext/userapi.rb', line 36

def html
  @html
end

#include_file(file) ⇒ Object 



44
45
46
47
48
49
 
# File 'lib/livetext/userapi.rb', line 44

def include_file(file)
# checkpoint "DATA = #{file.inspect}"
  api.data = file
  api.args = [file]
  api.dot_include
end

#optional_blank_line ⇒ Object 



94
95
96
97
98
99
 
# File 'lib/livetext/userapi.rb', line 94

def optional_blank_line
  peek = @live.peek_nextline  # ???
  return if peek.nil?
  @line = @live.nextline if peek =~ /^ *$/
  return true  # This way, dot commands will usually return true
end

#out(str = "", file = nil) ⇒ Object 



181
182
183
184
185
186
187
 
# File 'lib/livetext/userapi.rb', line 181

def out(str = "", file = nil)
  return if str.nil?
  return file.puts str unless file.nil?
  str.gsub!("\b ", "")   # ignore spaces
  @live.body << str
  @live.body << "\n" unless str.end_with?("\n")
end

#out!(str = "") ⇒ Object 



189
190
191
 
# File 'lib/livetext/userapi.rb', line 189

def out!(str = "")
  @live.body << str  # no newline
end

#passthru(line) ⇒ Object 



168
169
170
171
172
173
174
175
176
177
178
179
 
# File 'lib/livetext/userapi.rb', line 168

def passthru(line)
  return if @live.nopass
  if line == "\n"
    unless @live.nopara
      out "<p>" 
      out
    end
  else
    text = @expander.format(line.chomp)
    out text
  end
end

#print(*args) ⇒ Object 



206
207
208
209
 
# File 'lib/livetext/userapi.rb', line 206

def print(*args)
  # @live.output.print *args
  @live.api.out! *args
end

#puts(*args) ⇒ Object 



201
202
203
204
 
# File 'lib/livetext/userapi.rb', line 201

def puts(*args)
  # @live.output.puts *args
  @live.api.out *args
end

#raw_body(tag = "__EOF__") ⇒ Object 



115
116
117
118
119
120
121
122
123
124
125
126
127
 
# File 'lib/livetext/userapi.rb', line 115

def raw_body(tag = "__EOF__")
  lines = []
  @live.save_location = @live.sources.last
  loop do
    @line = @live.nextline
    break if @line.nil?
    break if @line.chomp.strip == tag
    lines << @line
  end
  optional_blank_line
  return lines unless block_given?
  lines.each {|line| yield line }
end

#raw_body! ⇒ Object 



151
152
153
 
# File 'lib/livetext/userapi.rb', line 151

def raw_body!
  raw_body(Livetext::Sigil).join("\n")
end

#setvar(var, val) ⇒ Object

FIXME



59
60
61
 
# File 'lib/livetext/userapi.rb', line 59

def setvar(var, val)   # FIXME
  @live.vars.set(var, val)
end

#setvars(pairs) ⇒ Object 



63
64
65
66
67
68
69
 
# File 'lib/livetext/userapi.rb', line 63

def setvars(pairs)
  # STDERR.puts "#{__method__}: pairs = #{pairs.inspect} (#{pairs.class})"
  pairs = pairs.to_a   # could be Hash or Variables
  pairs.each do |var, value|
    @live.vars.set(var, value)
  end
end

#trailing?(char) ⇒ Boolean 



105
106
107
108
 
# File 'lib/livetext/userapi.rb', line 105

def trailing?(char)
  return true if ["\n", " ", nil].include?(char)
  return false
end

#tty(*args) ⇒ Object 



193
194
195
 
# File 'lib/livetext/userapi.rb', line 193

def tty(*args)
  TTY.puts *args
end

#vars ⇒ Object 



90
91
92
 
# File 'lib/livetext/userapi.rb', line 90

def vars
  @vars
end