Paragraphs (The GNU Troff Manual)

#### 3.2.1 Paragraphs

Paragraphs can be separated and indented in various ways. Some start with a blank line and have a first-line indentation, like most of the ones in this manual. Block paragraphs omit the indentation.

      ⇒ Some  men  look  at constitutions with sanctimonious
      ⇒ reverence,  and  deem  them  like  the  ark  of  the
      ⇒ covenant, too sacred to be touched.

We also frequently encounter tagged paragraphs, which begin with a tag or label at the left margin and indent the remaining text.

      ⇒ one  This  is the first paragraph.  Notice how the
      ⇒      first line of the resulting  paragraph  lines
      ⇒      up with the other lines in the paragraph.

If the tag is too wide for the indentation, the line is broken.

      ⇒ longlabel
      ⇒      The  label does not align with the subsequent
      ⇒      lines, but they align with each other.

A variation of the tagged paragraph is the itemized or enumerated paragraph, which might use punctuation or a digit for a tag, respectively. These are frequently used to construct lists.

      ⇒ o    This  list  item  starts with a bullet.  When
      ⇒      producing output for a device using the ASCII
      ⇒      character set, an 'o' is formatted instead.

Often, use of the same macro without a tag continues such a discussion.

      ⇒ -xyz  This option is recognized but ignored.
      ⇒
      ⇒       It had a security hole that we don't discuss.