add parentheses to the output where required for disambiguation

9 files changed, 10 insertions, 10 deletions

diff --git a/regress/eqn/fromto/basic.out_ascii b/regress/eqn/fromto/basic.out_ascii
index e4530a15..b67ec47b 100644
--- a/regress/eqn/fromto/basic.out_ascii
+++ b/regress/eqn/fromto/basic.out_ascii
@@ -4,6 +4,6 @@ NNAAMMEE
      ffrroommttoo--bbaassiicc - vertical stacking
 
 DDEESSCCRRIIPPTTIIOONN
-     initial text E_(_i = 1)^oo 1/_i^2 final text
+     initial text E_(_i = 1)^oo 1/(_i^2) final text
 
 OpenBSD                          July 4, 2017                          OpenBSD
diff --git a/regress/eqn/fromto/noarg.out_ascii b/regress/eqn/fromto/noarg.out_ascii
index c09dcde2..f5f1e8fa 100644
--- a/regress/eqn/fromto/noarg.out_ascii
+++ b/regress/eqn/fromto/noarg.out_ascii
@@ -4,6 +4,6 @@ NNAAMMEE
      ffrroommttoo--nnooaarrgg - vertical stacking lacks final argument
 
 DDEESSCCRRIIPPTTIIOONN
-     initial text _x__a^^ final text
+     initial text _x_(_a^)^ final text
 
 OpenBSD                          July 4, 2017                          OpenBSD
diff --git a/regress/eqn/fromto/precedence.out_ascii b/regress/eqn/fromto/precedence.out_ascii
index 1eba1bef..b7da7180 100644
--- a/regress/eqn/fromto/precedence.out_ascii
+++ b/regress/eqn/fromto/precedence.out_ascii
@@ -4,6 +4,6 @@ NNAAMMEE
      ssuubbssuupp--pprreecceeddeennccee - precedence of subscripts and superscripts
 
 DDEESSCCRRIIPPTTIIOONN
-     initial text _X__a_^_c^ ; X_aa^_c ; _X_1^2__a__c^_e^_o__r^_s final text
+     initial text _X_(_a_)^_c^ ; X_aa^_c ; (_X_1^2)_(_a__c^_e)^(_o__r^_s) final text
 
 OpenBSD                          July 6, 2017                          OpenBSD
diff --git a/regress/eqn/over/noarg.out_ascii b/regress/eqn/over/noarg.out_ascii
index 22ceb49e..c30afa55 100644
--- a/regress/eqn/over/noarg.out_ascii
+++ b/regress/eqn/over/noarg.out_ascii
@@ -4,6 +4,6 @@ NNAAMMEE
      oovveerr--nnooaarrgg - fraction operator without arguments
 
 DDEESSCCRRIIPPTTIIOONN
-     initial text // final text
+     initial text (/)/ final text
 
 OpenBSD                          July 4, 2017                          OpenBSD
diff --git a/regress/eqn/over/precedence.out_ascii b/regress/eqn/over/precedence.out_ascii
index a77aa47f..1059b742 100644
--- a/regress/eqn/over/precedence.out_ascii
+++ b/regress/eqn/over/precedence.out_ascii
@@ -4,7 +4,7 @@ NNAAMMEE
      oovveerr--pprreecceeddeennccee - precedence of the fraction operator
 
 DDEESSCCRRIIPPTTIIOONN
-     initial text 1 + _x + _x^2/2 + _x^3/(2 * 3) ; _a^/_c~ ; aa/cc ; sqrt(_a)/sqrt(_c)
-     final text
+     initial text 1 + _x + (_x^2)/2 + (_x^3)/(2 * 3) ; _a^/_c~ ; aa/cc ;
+     sqrt(_a)/sqrt(_c) final text
 
 OpenBSD                          July 6, 2017                          OpenBSD
diff --git a/regress/eqn/subsup/combine.out_ascii b/regress/eqn/subsup/combine.out_ascii
index 8812f6f6..468a814c 100644
--- a/regress/eqn/subsup/combine.out_ascii
+++ b/regress/eqn/subsup/combine.out_ascii
@@ -4,6 +4,6 @@ NNAAMMEE
      ssuubbssuupp--ccoommbbiinnee - combination of subscripts and superscripts
 
 DDEESSCCRRIIPPTTIIOONN
-     initial text _x_1^2 + _e^_x_2 final text
+     initial text _x_1^2 + _e^(_x_2) final text
 
 OpenBSD                          July 4, 2017                          OpenBSD
diff --git a/regress/eqn/subsup/noarg.out_ascii b/regress/eqn/subsup/noarg.out_ascii
index d5b87b24..eec09f18 100644
--- a/regress/eqn/subsup/noarg.out_ascii
+++ b/regress/eqn/subsup/noarg.out_ascii
@@ -4,6 +4,6 @@ NNAAMMEE
      ssuubbssuupp--nnooaarrgg - empty subscripts and superscripts
 
 DDEESSCCRRIIPPTTIIOONN
-     initial text _x_1^^ final text
+     initial text _x_(1^)^ final text
 
 OpenBSD                          July 4, 2017                          OpenBSD
diff --git a/regress/eqn/subsup/precedence.out_ascii b/regress/eqn/subsup/precedence.out_ascii
index 60619b54..21207dd6 100644
--- a/regress/eqn/subsup/precedence.out_ascii
+++ b/regress/eqn/subsup/precedence.out_ascii
@@ -4,6 +4,6 @@ NNAAMMEE
      ssuubbssuupp--pprreecceeddeennccee - precedence of subscripts and superscripts
 
 DDEESSCCRRIIPPTTIIOONN
-     initial text _x^_1_^2 + _e~^_x^__s<-> ; I_II^_I + I^II__I final text
+     initial text (_x^)_(1_)^2 + (_e~)^((_x^)__s<->) ; I_II^_I + I^(II__I) final text
 
 OpenBSD                          July 6, 2017                          OpenBSD
diff --git a/regress/eqn/subsup/sub_group.out_ascii b/regress/eqn/subsup/sub_group.out_ascii
index 85e3568a..5628e6d9 100644
--- a/regress/eqn/subsup/sub_group.out_ascii
+++ b/regress/eqn/subsup/sub_group.out_ascii
@@ -4,6 +4,6 @@ NNAAMMEE
      ssuubbssuupp--ssuubb__ggrroouupp - grouping of subscripts
 
 DDEESSCCRRIIPPTTIIOONN
-     initial text _x__i + _x__j_1 + (_M__i)__j final text
+     initial text _x__i + _x_(_j_1) + (_M__i)__j final text
 
 OpenBSD                          July 4, 2017                          OpenBSD